Two angles are supplementary. The first angle measures 40°. What is the measurement of the second angle?

2 answers:

5 0

The first answer would be B 140 as supplementary angles add up to 180.

The next answer would be the surface of a flat table.

e-lub [12.9K]2 years ago

3 0

Supplementary angles add up to 180°.
If one is 40°, then the other is (180° - 40°) = 140° .

None of those choices describes a plane.
Choice 'C' is the only example of a plane.

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