amcpeanut5 amcpeanut5

06-01-2021
Mathematics

contestada

- Find the value of x for which ABCD must be a parallelogram.

Find the value of x for which ABCD must be a parallelogram class=

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sqdancefan sqdancefan

07-01-2021

9514 1404 393

Answer:

x= 5

Step-by-step explanation:

Sides BC and AD will be parallel when the two marked angles have the same measure:

5x -3 = 14x -48

45 = 9x . . . . . . . . . add 48-5x

5 = x . . . . . . divide by 9

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