If each side of a square of side a is tripled, what is the area of the new square formed?
A
a2
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B
4a2
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C
9a2
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D
12a2
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Solution
The correct option is C9a2 Given: Side of square = a Since the sides are tripled, then each side will be 3a. Since we know that area of square of side a is given by Area = a×a=a2 Area of the square of side 3a will be: Area = 3a×3a=9a2