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11-01-2019
Mathematics

contestada

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

find the m A 100 B143 C 38 D 25 class=

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Аноним Аноним

11-01-2019

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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