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Question

In ABC, E is mid-point of side AB and EBCD is a parallelogram. If the area of ABC is 80cm2, find the area of parallelogram EBCD.
187498_547aa98a8d0c4948a51f3abf80a2427c.png

A
80cm2
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B
70cm2
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C
60cm2
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D
40cm2
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Solution

The correct option is A 80cm2
ABC is a and E is the midpoint of AB.
AE=EB=AB2 (1)
Let EC be the altitude from C to AB
Area of ABC=12×AB×EC
=EB×EC (from (1))
=80cm2
Now,
Area of parallelogram =EB×EC
=80cm2
362261_187498_ans_97592773448b4593a8137cece6e90b0b.png

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