In trapezoid ABCD, AB || DC and mZA = AD = 4, and BC = 90°. If AB = 7, 5, find the two possible lengths for side DC.

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter3: Additional Topics In Trigonometry
Section3.1: Law Of Sines
Problem 1ECP: For the triangle shown, A=30, B=45, and a=32 centimeters. Find the remaining angle and sides.
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In trapezoid ABCD, AB || DC and mZA =
AD = 4, and BC =
90°. If AB =
7,
5, find the two possible lengths for side
DC.
Transcribed Image Text:In trapezoid ABCD, AB || DC and mZA = AD = 4, and BC = 90°. If AB = 7, 5, find the two possible lengths for side DC.
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