Question

Finding unknown side of right triangle?

Answer 1

You would use the pythagorean theorem

a^2 + b^2 = c^2
a & b are the two sides right next to the right angle. And c is the side opposite from the right angle..

So in this case
a or b is 7, c is 8, and we're solving for the final side.

7^2 + b^2 = 8^2
49 + b^2 = 64
b^2 = 64 - 49
b^2 = 15
\[b = \sqrt{15}\]

Answer 2

Yes, that's what I got! Thanks.