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Draw the square ABCD of area 9 square centimeters and find its side.

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4 cm

3 cm

2 cm

1 cm

answer is B.

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Detailed Solution

Given,

Area of square = 9 {cm}^{2}

It is known that,

Area of square = (Side)^{2}

Thus,

9 = (Side)^{2}

3^{2} = {(side)}^{2}

3 = side

side = 3 cm

Now make a line AB with measure of 3 cm.
From A and B as center make the angles of

90^{\circ} .

Here,
Cut off make the line AD = 3 cm from point A and BC = 3 cm from point B.
Join C to D
Here, we get the required square = ABCD.
Question Image

The side of this square is 3 cm long.
Option 2 is correct.

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