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
• B. 5.1 cm
• C. 10.2 cm
• D. 10 cm

Answer 1

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