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What is a requirement of supplementary angles? Supplementary angles must be adjacent. Supplementary angles must be nonadjacent. The measures of supplementary angles must add up to 90°. The measures of supplementary angles must add up to 180°.

Respuesta :

ekamunya04

Answer:

the measure of supplementary angles must add up to 180

Step-by-step explanation:

complementary angles add up to 90°

angles on a straight line are supplementary angles which add up to 180°

braylonverx387

Answer:

must add up to 180°.

Step-by-step

Supplementary angles are two angles whose measures add up to 180°

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