For the following right triangle, find the side length x.

Question

asked Apr 17, 2021 78.6k views

2 Answers

Alex Baranowski · Answer 1 · 2021-04-20T05:28:32+0000

Answer:

29

Explanation:

Since it's a right triangle, use Pythagorean theorem to help you

a² + b² = c²

You already have a and b so just plug them in

20² + 21² = c²

400 + 441 = c²

841 = c²

Root both sides

c = 29