Respuesta :

choixongdong

Pythagorean Theorem

a^2 + b^2 = c^2

so

b^2 = c^2 - a^2

Plug in

b^2 = 13^2 - 7^2

b^2 = 169 - 49

b^2 = 120

b = √120

Answer

c. √120 centimeters