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Georgia [21]
3 years ago
6

ABCD is a parallelogram. Find the values of x and y. Solve for the value of z, if z=x−y.

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
3 0

Answer:

C. z = -10

Step-by-step explanation:

Same side interior angles of parallel lines cut by a transversal are supplementary.

x + 30 + x - 30 = 180

2x = 180

x = 90

x - 30 + y + 20 = 180

90 - 30 + y + 20 = 180

y + 80 = 180

y = 100

z = x - y = 90 - 100

z = -10

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