4 6 Given Point is the midpoint of AC Point C is the midpoint of AD Prove 4AB AD Arrange the steps in order to complete the proof 1 2 3 4 G 5 Use the figure to complete the proof of the theorem 1 21 22 2 21 and 22 form a linear pair 3 21 and 22 are supplementary 4 21 and 22 are right angles If two congruent angles form a linear pair then they are right angles Given 21 22 Prove m 1 Given 2 3 4 Blank 2 Point is the midpoint of AC Point C is the midpoint of AD Given AABAD Addition AB AB AD 4 ABAD Substitution CD Definition of midpoint AC CD AD Segment Addition Postulate it is given that Z21 22 Also 2123 because these are ABBC AC All 4 BC AC AB AB AC AC AC AD Substitution Blank 1 options corresponding vertical angles Therefore 22 23 by the Transitive Property of Congruence by the Blank 1 2 OPTIONS Linear pairs are suppl Oliven If 2s are and suppl then they are right s Blank 2 options Converse of Corresponding Angles Theorem Converse of Alternate Exterior Angles Theorem that m