CDS 2010 PYQ with Answer — Three lines intersect each other in pairs. What is the number of angl… | UPSC One

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CDS 2010 · Elementary Mathematics (CDS-I)Q48

Back to the full 2010 paper

2010 · Q48

Three lines intersect each other in pairs. What is the number of angles so formed ?

Elementary MathematicsGeometry

A3
B6
C9
D12

Explanation

3 intersection points × 4 angles = 12.

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