find the angle which is twice its supplement?
回答 (2)
2015-09-15 5:04 pm
let x be the measure of the angle and y the measure of it's supplement.
x+y=180. (supplementary angles)
and x=2*y
so 3*y=180 ; y=60.
that means that x=120.
x+y=180. (supplementary angles)
and x=2*y
so 3*y=180 ; y=60.
that means that x=120.
2015-09-15 4:24 pm
x = 2(180° - x)
3x = 360°
x = 120°
3x = 360°
x = 120°
收錄日期: 2021-04-21 14:12:15
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