Question:
The side of a square is 10 cm. How many times will the new perimeter become if the side of the square is doubled?
The side of a square is 10 cm. How many times will the new perimeter become if the side of the square is doubled?
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When scaling a square, the perimeter scales linearly by the same factor as the side length.
Updated On: Mar 25, 2025
- 2 times
- 4 times
- 6 times
- 8 times
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The Correct Option is A
Solution and Explanation
Original perimeter = \(4 \times 10 = 40\) cm
New side length = \(2 \times 10 = 20\) cm
New perimeter = \(4 \times 20 = 80\) cm
Factor of increase = \(80 \div 40 = 2\).
New side length = \(2 \times 10 = 20\) cm
New perimeter = \(4 \times 20 = 80\) cm
Factor of increase = \(80 \div 40 = 2\).
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