Answer
(a) isosceles trapezoid
(b) isosceles trapezoid
Work Step by Step
(a) By symmetry, an isosceles trapezoid has congruent diagonals.
(b) By symmetry, an isosceles trapezoid has congruent base angles.
Elementary Geometry for College Students (6th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
9781285195698
ISBN 13:
978-1-28519-569-8
Chapter 4 - Section 4.4 - The Trapezoid - Exercises - Page 200: 3
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