Question

The sides of a quadrilateral ABCD are produced in order. The ext. angle B=70° , ext. /C= 100° and ext. angle D=85° . Find the measure of ext. angle A . [Hint: If the sides of a quadrilateral are produced in order. The sum of the exterior angles so formed is equal to 4rt Zs]
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Answer 1

The sides of a quadrilateral ABCD are produced in order. The ext. angleB = 70", ext. angelC = 100

and ext. angleD = 85. Find the measure of ext. angleA

[Hint: If the sides of a quadrilateral are produced in order. The sum of

the exterior angles so formed is equal to 4rtangleS]85

100%)

70