2katherinevazquez 2katherinevazquez

21-03-2020
Mathematics

contestada

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.

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amna04352 amna04352

21-03-2020

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°

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