Q.

In the given figure, ifABD=106° andACF=118° . Then value of A is

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a

44°

b

54°

c

36°

d

34°

answer is A.

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Detailed Solution

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Given ABD=106°

ACF=118°

ACB+ACF=180° (linear pair)

ACB+118°=180°

ACB=180°118

ACB=62°

Exterior angle is equal to sum of its opposite interior angles.

A+ACB=ABD

A+62°=106°

A=106°62°

A=44°

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