The measure of an angle is 21° more than twice its supplement. How do you find the measure of each angle?

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Answer 1 · 2016-10-31T09:45:04

53, 127

Let #x# be the measurement of the angle's supplement

#=> x' = 2x + 21#

Since the two angles are supplements

#x + x' = 180#

#=> x + 2x + 21 = 180#

#=> 3x = 159#

#=> x = 53#

#=> x' = 127#