Can you help me with this question in geometry?

Question

asked Dec 24, 2018 117k views

1 Answer

Sirvine · Answer 1 · 2018-12-30T13:41:40+0000

I believe this just uses the Pythagorean Theorem. A^2+B^2=C^2. So:
15^2+B^2=25^2. Simplified this is,
225+B^2=625
625-225=400
B^2=400
√ B=√ 400
B=20