To convert 8 meters and 6 decimeters to meters, you need to know the relationship between meters and decimeters.

1 meter = 10 decimeters

So, 6 decimeters is equal to 6/10 meters, which is 0.6 meters.

Now, add this to the 8 meters:

8 meters + 0.6 meters = 8.6 meters

Therefore, 8m 6dm is equal to 8.6 meters.