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Perpendicular Bisector and It's Construction

If the perpen...

Question

If the perpendicular bisector of line segment MN intersects it at point K, 10.2 cm from N, the length of MN is:

A

20.4 cm

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B

5.1 cm

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C

10.2 cm

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D

10 cm

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Solution

The correct option is A 20.4 cm
A perpendicular bisector of a line segment divides the line segment into 2 equal parts.
Hence if the perpendicular bisector of line segment MN intersects it at point K, 10.2 cm from N, the length of MN is 10.2 x 2 = 20.4 cm

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