Respuesta :

Answer:

A. 13

Step-by-step explanation:

Pythagorean Theorem: a^2+ b^2=c^2

a = 12

b = 5

c = ?

12^2+5^2=c^2

144 + 25 = c^2

169 = c^2

c = sqrt(169)

c = 13

A.13
Is the answer to find x in PQR