the measure of three angles of a quadrilateral is 30 degree ,70 degree and 100 degree ,find out the measurement of fourth angle
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360 -(100+70+30)
360-(200)
160 answer
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Answer:
30° + 70° + 100° + x = 360° ( angle sum property of quadrilateral
200° + x = 360°
x = 360° - 200°
x = 160°
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