Question

Find the length of the missing side. Leave your answer in simplest radical form.

Answer 1

Answer:

a)  $\sqrt{69}$

Step-by-step explanation:

this is a right triangle so you can use the Pythagorean Theorem:

the sum of the legs, squared, is equal to the hypotenuse, squared

10² + b² = 13²

100 + b² = 169

b² = 69

b = $\sqrt{69}$