The supplement of an angle is 20 more than the measure of the angle itself. How do you find the angle?

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Answer 1 · 2016-11-28T22:02:10

The angle is #80°#

An angle and its supplement make #180°#

Let the angle itself be #x#.
It's supplement is 20° more #rarr x+20#

Together they make 180°

#x+x+20 = 180#

#2x +20 = 180#

#2x= 160#

#x = 80#

The angle is #80°#
The supplement is #100°#