# Math Help - geometry

1. ## geometry

in a triangle ABC,the angle at A is 3 times the angle at B and half of the angle at C. find all the angles and verify tht their sum is 180 degree.

2. Solve for A:

$A+\underbrace{\frac{A}{3}}_{\text{B}}+\underbrace{ 2A}_{\text{C}}=180$