In this figure, line x is parallel to line y. If the measure of angle 7 is 140°, and the measure of angle 2 is represented by (12x – 4)', what is the value of x?
2
4
6 8
5
7
1
3
45
O 144
15
12

your answer is 228

step-by-step explanation:

add the top and bottom bases together, then divide them by 2, then multiply by the height.

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