#### Answer

(a) rectangle
(b) rhombus

#### Work Step by Step

(a) A parallelogram with congruent diagonals is a rectangle.
(b) A parallelogram with perpendicular diagonals is a rhombus.

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Published by
Brooks Cole

ISBN 10:
9781285195698

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

(a) rectangle
(b) rhombus

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