20 lines pass through a given plane. The maximum number of parts in wh – InterviewSolution

1.

20 lines pass through a given plane. The maximum number of parts in which the plane can be divided is(a) 210(b) 211(c) 212(d) None of these

Answer»

Correct option (b)

Explanation:

Use 1 + ∑n

= 1 + ∑20 = 1 + 20.21/2 = 211

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