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03-03-2019
Mathematics

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quadrilateral abcd had side lengths of AB= 3, bc=4y-5, Cd=3, and AD=2y+1. Find the value of y for which quadrilateral abcd is a parallelogram.

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sqdancefan sqdancefan

04-03-2019

Answer:

y = 3

Step-by-step explanation:

Opposite sides of a parallelogram are the same length, so ...

BC = AD

4y -5 = 2y +1 . . . . substitute the given expressions

2y = 6 . . . . . . . . . . add 5-2y

6/2 = y = 3 . . . . . . divide by the coefficient of y

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