Foundation
Mathematics Foundation
Basic Properties of Quadrilateral
Understanding Quadrilaterals
Quadrilaterals
Question
The sides of a quadrilateral are extended in order to form exterior angles. The sum of these exterior angle is.
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Solution
We know,
sum of opposite angle of quadrilateral is 180°
Sun of exterior angle in quadrilateral
= (180 – θ) + (180 – φ) + θ + φ
= 180º + 180º
= 360º