Question

Determine the length of the missing side in each of the right triangles below using the Pythagorean Theorem: a2 + b2 = c2.

Answer 1

the answer is 12
${13}^{2} = {5}^{2} + {b}^{2} \\ {b}^{2} = {13}^{2} - {5}^{2} \\ b {}^{2} = 169 - 25 = 144$
$b = \sqrt{144} = 12$


good luck