Answer to Question #205523 in Geometry for David Festus

Question #205523

If the angles of a quadrilateral are (p+10)°,(2p-10)°,(p+20)° and 4p°, find p

Expert's answer

The sum of the interior angles of a quadrilateral is 360°

"p+10+2p-10+p+20+4p=360"

"8p=340"

"p=42.5\\degree"

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