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The length of a rectangle is 4 times its width. If the length of the rectangle is cut in half, the new perimeter is which percent of the original perimeter?
- A 25%
- B 50%
- C 60%
- D 100%
That's Correct!
It's Wrong!
If the length of the rectangle is 4 times its width, let's assume the width is x. Therefore, the length would be 4x. The original perimeter would be 2(length + width), which is 2(4x + x) = 10x. If the length is cut in half, the new length would be 2x. The new perimeter would be 2(new length + width), which is 2(2x + x) = 6x. To find the percentage, we need to calculate (new perimeter / original perimeter) * 100, which is (6x / 10x) * 100 = 60%.
