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12 $m^{2}$ is the area of

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A square with side 12 m

12 squares with side 1 m each

3 squares with side 4 m each

4 squares with side 3 m each

answer is B.

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Detailed Solution

It is given that a square has an area of 12

m^{2} .

We know that area of square=

length \times length

.
For option 1,
A square with side of 12 m means the area is

12 \times 12 =

144

m^{2} .

Hence, option 1 is not correct.
For option 2,
12 squares with side 1 m each means the area of each square is

1 \times 1

= 1

m^{2} .

Therefore, 12 squares = 12

m^{2} .

This is the correct option.
For option 3,
There are 3 squares with side 4 m.
This means each square has area of

4 \times 14 =

m^{2} .

Hence the total area of 3 squares=3×16
=48

m^{2}

The option is incorrect.
For option 4,
There are 4 squares with side 3 m.
This means each square has area of

3 \times 3 =

m^{2} .

Hence the total area of 4 squares=4×9
=36

m^{2}

The option is incorrect.
Therefore, the correct option is 2.

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