ktrav258 ktrav258

17-04-2018
Mathematics

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Calculate x and y, with an adequate explanation. For points.

Calculate x and y with an adequate explanation For points class=

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mathstudent55 mathstudent55

17-04-2018

Opposite angles of a parallelogram are congruent.
Adjacent angles of a parallelogram are supplementary.

Set the measures of the two opposite angles equal and solve for x.

5x - 20 = 2x + 43

3x = 63

x = 21

Set the sum of two adjacent angles equal to 180.

5x - 20 + 4y - 5x = 180

-20 + 4y = 180

4y = 200

y = 50

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