Question

Triangle ABC has C=90º:
Find angle B if a=4 and c=8.

Answer 1

use Pythagoras theorm b^c=c^2-a^2

Answer 2

Since you are dealing with a right triangle, use the Pythagorean theorem.

Answer 3

\(a^2 + b^2 = c^2\), so

\(b^2 = c^2 - a^2\)

Plug in values for a and c, and solve for b.