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Question

Ajay's father asks him to find the area covered by the grass in his garden. Ajay is informed that the shape of the area covered by the grass is square which has a diagonal length of 162 meters. What is the area calculated by Ajay?


A

256 m2

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B

16 m2

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C

32 m2

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D

None of the above

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Solution

The correct option is A

256 m2


Since area of a square has to be calculated, whose diagonal length is 162 meters. The relation between diagonal and side of a square is :

a2=d, where, a = side of the square and d = length of diagonal (from Pythagorean theorem)

a2=162

a=16m.

Therefore, area is given by:

A = a2

A=162=256m2.


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