Question

What is the length of the leg in a right triangle whose hypotenuse is 13 and other leg is 12.



A. 3
B. 5
C. 4
D. 2

Answer 1

But of course, we can use the pythagorean theorem...
\[\Large a^2 + b^2 = c^2\]

Answer 2

And now, you can just solve for a.