# Complete the proof of the following theorem: “The diagonals of an isosceles trapezoid are congruent.” Given: Trapezoid ABCD; A B ¯ ∥ D C ¯ and A D ¯ ≅ B C ¯ . Prove: A C ¯ ≅ B D ¯ PROOF Statements Reasons 1_________ 2. ∠ A D C ≅ ∠ B C D 3. D C ¯ ≅ D C ¯ 4. Δ A D C ≅ Δ B C D 5.__________ 1.______________ 2. Base ∠ s of an isosceles trapezoid are _______. 3._________ 4.____________ 5. CPCTC

### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
Publisher: Cengage Learning
ISBN: 9781285195698

### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
Publisher: Cengage Learning
ISBN: 9781285195698

#### Solutions

Chapter
Section
Chapter 4.CT, Problem 16CT
Textbook Problem

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