Bài tập  /  Bài đang cần trả lời

Giải bài có thưởng!

Cho tam giác ABC vuông tại A. Tia phân giác của góc B cắt cạnh AC ở D, kẻ DE vuông góc BC tại E

Cho tam giác ABC vuông tại A.Tia phân giác của góc B cắt cạnh AC ở D,kẻ DE vuông góc BC tại E.
a) Chứng minh tam giác ABD= tam giác EBD
b) So sánh AB và BE
0 Xem trả lời
Hỏi chi tiết
189
Tham khảo câu trả lời từ Trợ lý ảo Lazi
a) Ta có:
$\angle ABD = \angle ABE + \angle EBD$ (1) (định lí phân giác)
$\angle EBD = \angle EBA + \angle ABD$ (2) (định lí phân giác)
Từ (1) và (2), ta có:
$\angle ABD = \angle ABE + \angle EBA + \angle ABD$
$\Rightarrow \angle ABE + \angle EBA = 0$
$\Rightarrow \angle ABE = \angle EBA$
$\Rightarrow \triangle ABD = \triangle EBD$ (cùng có 2 góc bằng nhau)
b) Ta có:
$\angle ABE = \angle ABD + \angle DBE$ (định lí phân giác)
$\angle DBE = \angle EBD + \angle EBA$ (định lí phân giác)
Từ đó, ta có:
$\angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle EBA$
$\Rightarrow \angle ABE = \angle ABD + \angle EBD + \angle E

Bạn hỏi - Lazi trả lời

Bạn muốn biết điều gì?

GỬI CÂU HỎI
Học tập không giới hạn cùng học sinh cả nước và AI, sôi động, tích cực, trải nghiệm

Hôm nay bạn thế nào? Hãy nhấp vào một lựa chọn, nếu may mắn bạn sẽ được tặng 50.000 xu từ Lazi

Vui Buồn Bình thường
×
Trợ lý ảo Trợ lý ảo
×
Đấu trường tri thức | Lazi Quiz Challenge +500k
Gửi câu hỏi
×