SOLUTION: The measure of an angle is twice that of its supplement. Find the measure of the angle and of its supplement. 120;60

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Question 322196: The measure of an angle is twice that of its supplement. Find the measure of the angle and of its supplement. 120;60
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
+A%2BS=180+
A=2S
Substitute,
2S%2BS=180
3S=180
S=60degrees
Then
A=2S
A=120degrees