#### 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.

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Published by
Brooks Cole

ISBN 10:
9781285195698

ISBN 13:
978-1-28519-569-8

(a) isosceles trapezoid
(b) isosceles trapezoid

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