Question

Pls help; I am kind of suckish with Pythagorean Theorem

Also, please show the method, as I would like to understand. Thank you.

Answer 1

Answer: x = 20

Explanation:

Pythagorean Theorem is: a² + b² = c² where c is the hypotenuse

Given: a = 21, b = x, c = 29

21² + x² = 29²

441 + x² = 841

x² = 400

√x² = √400

x = 20