Question

In ΔABC, the measure of angle A is 5° more than 3 times the measure of angle B. Angle C measures 20°less than angle B. Determine the measures of angles A, B, and C.

Answer 1

Answer:

A = 122°, B = 39°, C = 19°

Step-by-step explanation:

(5+3B) + B + (B-20) = 180

5B = 195

B = 39°

A = 5 + 3(39) = 122°

C = 39 - 20 = 19°