SOLUTION: find the measure of the unknown angle for this quadrilateral:
120°, 40°, 4x°, 16x°
Algebra.Com
Question 827443: find the measure of the unknown angle for this quadrilateral:
120°, 40°, 4x°, 16x°
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
120+40=160
4x+6x+160=360
10x=360-160
10x=200
x=200/10
x=20
4x=80
6x=120
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