Question

What is the value of X?

Answer 1

B: 20

Explanation:

By the pythagorean thereom, x^2+21^2=29^2. Solving gives X^2=29^2-21^2=400, so X=20.

Answer 2

20

Explanation:

When we use Pythagorean Theorem we get x² + 21² = 29² which means x = 20.