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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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asked Aug 25, 2023 12.1k views

1 vote

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

Mathematics
high-school

Peng asked

by Peng

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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

Seba Kerckhof answered Aug 31, 2023

by Seba Kerckhof

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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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