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  1. One side of a rectangular field is 4 meter and its diagonal is 5 meter. The area of the field is ?
    1. 12 m2
    2. 15 m2
    3. 20 m 2
    4. 4√5 m2
Correct Option: A

Other side = √5 2 - 42
= √ 9
=3 m

So The area of the rectangular field = 4 x 3
= 12 m2


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