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Question

Lines PQ and RS intersect at O. IfPOR:ROQ=5:7. Then POS =

A
105
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B
75
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C
45
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Solution

The correct option is A 105

POR+ROQ=180(linear pair) and given POR:ROQ = 5:7

Therefore POR=512×180=75
and ROQ=712×180=105

POS=ROQ(vertically opposite angles)
POS=105

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