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Q: What is the perimeter of a rectangle 7 in by 2 in enlarged by the scale factor of 1.5?

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Scale factor and perimeter are related because if the scale factor is 2, then the perimeter will be doubled. So whatever the scale factor is, that is how many times the perimeter will be enlarged.

if the length and breadth are increased by 5 times each area becomes 25 times

It will be three times the size. Each length will be multiplied by 3.. Perimeter = h+h+w+w if we multiply each by three then we get 3h+3H+3w+3w = 3P

The perimeter will scale by the same factor.

New perimeter = old perimeter*scale factor New area = Old area*scale factor2

The linear scale factor is 100.

There need not be any. There is no scale factor between a pentagon with a perimeter of 50 cm and a triangle with a perimeter of 75 cm. The shapes are totally different!The scale factor is 2 : 3.

It depends on the aspect ratio. If it is a square object then it should scale up evenly. But if it is a rectangle then eventually a large enough scale factor will make it looked stretch on the longer sides.

Absolutely nothing. A scale factor of 1 is the same as saying do not change the scale.

If you assume that 2.5 refers to the scale factor, you multiply each linear measurement by 2.5. This includes the width, the length, and - if you want to use it to construct your new rectangle - the diagonals. It also happens to include the perimeter, but you probably won't need that to construct the rectangle.

It is a strict linear relationship. Double the size, double the perimeter. The area, however, increases by the square of the scale factor.

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