Answer:
x = 12
Step-by-step explanation:
By applying Pythagoras theorem in the given right triangle,
(Hypotenuse)² = (leg 1)² + (leg 2)²
From the picture attached,
Length of Hypotenuse = 13
Length of leg 1 = 5
Length of leg 2 = x
By substituting these values in the formula,
(13)² = 5² + x²
169 = 25 + x²
169 - 25 = x²
144 = x²
(12)² = x²
x = 12
