Question

The measure of an angle equal to half of its supplementary angle is______.

Answer 1

Answer:

90degrees ................

Answer 2

Answer:

120°

Step-by-step explanation:

GIVEN

x + x/2 = 180

( 2x + x )/2 = 180

3x = 180×2

3x = 360

x = 360/3

x = 120°

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