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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Home » Mathematics » 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.