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In triangle ABC, the measure of angle B is 27 degrees more than three times the measure of angle A.
The measure of angle C is 48 degrees more than the measure of angle A.
The measures of the three angles in a triangle must total 180 degrees.
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B = 3A + 27 degrees.
C = A + 48 degrees.
A + B + C = 180, or, substituting,
A + (3A+27) + (A+48) = 180 --->
5A + 75 = 180 ---> 5A = 180 - 75 ---> 5A = 105 ---> A = = 21 degrees.
Having A, can you find B and C on your own and to complete the assignment ?