For what value of x is quadrilateral CDEF a parallelogram?

asked Mar 25, 2022 46.9k views

4 votes

by Deyan

3.7k points

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5 votes

Answer:

x = 2.

Explanation:

If its a parallelogram then the diagonal will be bisected so:

4x + 7 = 10x - 5

7 + 5 = 10x - 4x

12 = 6x

x = 2.

Jeanjean answered Mar 28, 2022

4.0k points

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