5. Two angles of a quadrilateral are 70° and 40° respectively and the remaining two angles are in the ratio of 2:3.
Find the measure of each angle of the quadrilateral.
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Answer:
70 + 40 + 2x + 3x = 360
110 + 5x = 360
5x = 360 - 110
5x = 250
x = 250/5
x = 50
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