We have a right triangle that has am 8 meter and 21 meter leg .find the hypotenuse

hypotenuse is 22.47 m

Step-by-step 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

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)