Question

Can someone show me how to solve a right triangle problem using pythagorean theorem?

Answer 1

A2+b2=c2

Answer 2

C is the hypotenuse, and A and B are the two shorter sides. Then, like @bicountry said, you can use \[A ^{2}+B ^{2}=C ^{2}\] to solve for your unknown variable.

Answer 3

So if you know that side A = 3 and side C=5, you can find side B by

\[3^{2}+B ^{2}=5^{2} \]
\[B ^{2}=5^{2} - 3^{2} \]
\[B ^{2}=16 \]
\[B=\sqrt{16}\]

so B=4