Question

Find the measure of angle C of triangle ABC, if messure A=a messure B=2a​

Answer 1

Answer: The correct answer is c = 180 -3a

Explanation:

The sum of angles in a triangle = 180 degrees

Therefore: A + B + C = 180

Substitute the variables:

a + 2a + c =180

3a + c = 180

Subtract 3a from both sides:

(-3a) 3a + c = 180 (-3a)

c = 180 -3a