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Angle A & Angle B are supplementary. The measure of angle B is 3x the measure of angle A. Find angle A & angle B. How?

Sagot :

AL2006idn
If the angles are supplementary, then you know that
they add up to 180 degrees.

A = 1 time A
B = 3 times A

Total:  (1 time A + 3 times A) = 4 times A

4 times A = 180 degrees

Divide each side by 4 :

1 time A = 180/4 = 45 degrees

A = 45 degrees

B = 3 times A = 135 degrees

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