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If x°, 75°, 105° and 80° are the angles of a quadrilateral, find the size of x°.
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1 vote
If x°, 75°, 105° and 80° are the angles of a quadrilateral, find the size
of x°.

User Peng
by
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1 Answer

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Total angle of a quadrilateral is 360

X+75+105+80=360
X+260=360
X=360-260
X=100
User Seba Kerckhof
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6.1k points
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