Answer:
x=11.75
If the answer is 11.75, move to L.
Explanation:
The sum of all angles in this parallelogram is 360°. And angles which are vertical are the same.
118+118= 236
236+2(4x+15)=360
236+8x+30=360
8x+266=360
8x=94
11.75
Interior angles in a quadrilateral sum to 360.
Opposite angles in a parallelogram are the same.
360=118+118+(4x+15)+(4x+15)
= 236 + 8x + 30
= 266 + 8x
8x = 360 - 266 = 94
x=94/8 = 11.75
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