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Question

How many angles are formed when three lines intersect at three points?

A
8
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B
9
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C
12
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D
15
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Solution

The correct option is C 12

Let three points be A, B & C.

Total angles subtened at point A = 4. (As shown in the figure)

Similarly, for point B and C.

Hence, total angles formed = (4 + 4 + 4) = 12


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