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Calculating Fractional Area

A bar of leng...

Question

A bar of length 20 units is made into square find its area

A

25

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B

20

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C

16

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D

None of these.

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Solution

The correct option is C 25
The length of bar is perimeter of square
The perimeter of square is $4 a = 20 a = \frac{20}{4} = 5$
Area is given as $a^{2} = 5^{2} = 25$

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