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Question

In the given figure, a || b and c || d. If 1=75, what is the measure of 3?


A

105

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B

150

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C

75

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D

100

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Solution

The correct option is A

105




Given a || b and c || d and 1=75
Since, a || b,
1=2 =75 (corresponding angles are equal)

Also c || d,
2+3=180 [sum of co-interior angles is 180]
3=18075 =105


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