Which statements can be used to justify the fact that two right angles are supplementary? Check all that apply.

A. A right angle measures 90°.

B. If two angles are complementary, the sum of the angles is 90°.

C. If two angles are supplementary, the sum of the angles is 180°.

D. A complementary angle is one-half the measure of a supplementary angle.

E. A supplementary angle is twice the measure of a complementary angle.

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9 March, 11:55

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Jordon Perkins · Answer 1

B and C are your answer. when there is an angle and its separated into two parts, adding the two angles should give you either 90 or 180 degrees.