Posted by Kate on .
In triangle ABC, angle B is four times as large as angle A. The measure of angle C is 12∘ more than that of angle A. Find the measures of the angles.

Algebra, HELP! PLEASE! 
Graham,
The sum of the angles of a triangle is 180°.
Use:
A + B + C = 180°
where B = 4A and C = A+12°