3 years ago

Find the m A. 100 B.143 C. 38 D. 25

Mathematics

1 answer:

Ainat [17]3 years ago

3 0

Answer:

143 degrees.

Step-by-step explanation:

m < A + m < B = 180 degrees. ( inside angles of a parallelogram). So:-

4x - 9 + x - 1 = 180

5x - 10 = 180

5x = 190

x = 38

So m < A = 4(38) - 9

= 143 degrees.

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