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Angles of quadrilateral

Angles of quadrilateral
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1 vote
Angles of quadrilateral

Angles of quadrilateral-example-1
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User Farhawa
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8.2k points

1 Answer

5 votes
quadrilaterals must have inner angles that add up to 360
78+82=160 360-160=200 degrees left
x+4x or5x=200 divide both sides by five to get x=40
The upper right angle is 4(40) or 160 degrees and the lower left angle us 40 degrees
answered
User Estevex
by
8.6k points
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