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In a trapezium ABCD, DC || AB , AB = 12 ...

In a trapezium ABCD, DC || AB , AB = 12 cm and DC = 7.2 cm. What is the length of the line segment joining the mid- points of its diagonals?

A

4.8 cm

B

3.6 cm

C

2.4 cm

D

2.6 cm

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