Question

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

Answer 1

143 degrees.

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.