Answer:
hypotenuse is 22.47 m
Explanation:
The length of both legs of a right angle triangle are 8m and 21 m
We need to find the hypotenuse
To find hypotenuse we use Pythagorean theorem
Hypotenuse is AC and other two legs are AB and BC

Hypotenuse ^2 = 8^2 + 21^2
hypotenuse =

=

=

= 22.47
So the length of the hypotenuse is 22.47 m