46:29 Consider the diagram and proof by contradiction. Given: AABC with ZBY ZC Prove: AB - AC It is given that ZB & C. Assume AB and AC are not congruent. If AB > AC, then m ZC >m ZB by If AC > AB, then m ZB > mZC for the same reason. However, using the given statement and the definition of congruency, we know that m ZB = mZC. Therefore, AB = AC and AB AC. What is the missing reason in the proof? Oconverse of the triangle parts relationship theorem
O substitution
O definition of congruency
O converse of the isosceles triangle theorem

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