Question

3 Find the value of y.

Answer 1

To solve this problem use the Pythagorean theorem

c^2 = a^2 + b^2

c= 13

a = 5

b = y

13^2 = 5^2 + y^2

y^2 = 13^3 - 5^2

y^2 = 169 - 25

y^2 = 144

y = 12