7. The measure of an angle which is equal to its supplement is
(a) 100°(b) 75° c) 90° (d) 60°
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Answer is C)90°
Let the angle measure be x°
x is equal to its supplement.
Let its supplement be y
x+y=180°
x+x=180
2x=180
x=90°
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...Hope it helps....
Answered by
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Answer:
90 degree
Step-by-step explanation:
x+y=180°
x+x=180°
2x=180°
x=180°/2
x=90°
this is a correct answer
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