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Question

In the given figure two parallel lines l,m are intersected by a tranversal. If 1=105 then 7 and 8 are


A

45,135

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B

105,75

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C

75,105

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D

95,85

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Solution

The correct option is B

105,75


Given,lm and 1=105

1=7 [ Exterior alternate angles]

7=105

7+8=180 [ Linear Pair]

105+8=180

8=180105=75

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