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Opposite Sides of a Parallelogram Are Equal

In parallelog...

Question

In parallelogram ABCD, AL ⊥ CD and CM ⊥ AD. If AL=20cm , CD=12 cm, CM=8cm, then perimeter of the parallelogram is

A

42 cm

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B

84 cm

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C

64 cm

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D

68 cm

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Solution

The correct option is B
84 cm

84 cm

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