Question

Find the values of the sine, cosine and tangent for angle A.

Answer 1

first use the Pythagorean theorem to find 3rd side of right triangle
\[\huge\rm a^2+b^2=c^2\]
and \[\rm sin \rm \theta = \frac{ opposite }{ hypotenuse }~~~~ \cos \theta = \frac{ adjacent }{ hypotenuse } ~~\tan \theta = \frac{ opposite }{ adjacent }\]