Posted by nikki on Thursday, September 30, 2010 at 12:34am.
How to solve: the measure of an angle is 12 less than twice the measure of its supplement. What is the measure of the angle?
- Geometry - Kyle Buchanan, Thursday, September 30, 2010 at 2:29am
x + (2x - 12) = 180
3x - 12 = 180
3x = 180
- Geometry - Reiny, Thursday, September 30, 2010 at 8:57am
let the angle be x
then its supplement is 180-x
x = 2(180-x) - 12
x = 360 - 2x - 12
3x = 348
x = 116
if the angle is 116
its supplement is 64
twice the supplement is 128
12 less than twice the supplement = 128-12 = 116
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