The measure of an angle is 60° less than nineteen times the measure of its supplement. what is the measure of the angle?

1 answer:

3 0

Two angles are supplementary when they <span>add up to 180 degrees.

x = angle
19x-60 = </span><span>supplement angle

x + 19x - 60 = 180
20x = 180 + 60
20x = 240
x = 240/20
x = 12</span>° ← answer

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