1 and 3 are supplementary July 8, 2019 16 32 64 128 1 and 3 are supplementary angles Prove 1 a n d 3 are supplementary ∠ 1 and ∠ 3 are supplementary Prove angle 1 and angle 3 are supplementary 1 and 2 are supplementary 2 and 3 are supplementary 1 and 2 and 3 1 2 3 there you go A 1 2 3 4 1+ 3
