Question

Determine the length of side a in the triangle below the length of side a is

Answer 1

a = 15 units

Explanation:

This is a right triangle. Use the Pythagorean Theorem:

a^2 + b^2 = c^2

a = unknown

b = 20

c = 25

a^2 + (20)^2 = (25)^2

a^2 + (20)^2 = (25)^2

a^2 + 400 = 625

a^2 = 225

a = 15 units