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Write the correct answer from the given four options. A square board has an area of 144 square units. How long is each side of the board?

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11 units

12 units

13 units

14 units

answer is B.

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Detailed Solution

It is given that a square board has an area of 144 square units.
Let the length of the sides of the square be a.
We know that area of square=a×a.
Hence, the area of square board = a×a
⇒

a^{2}

=144
⇒a=√144
⇒a=12 units
Hence, the correct option is 2.

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