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# How is the scale factor obtained?

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The scale factor can be obtained by dividing the length of a side in the second shape by the length of the corresponding side. The scale factor is a fraction or decimal number that can be used to scale up or down a shape.

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A scaled up or scaled down shape is identical to the original shape in terms of number of sides and size of internal angles. The original and scaled shape can be matched up based on the equivalent angles. The scale factor is calculated dividing a side on the resulting shape by the matching side on the original. The lengths of other sides on the scaled shape can be calculated by multiplying other sides of the original by the scale factor.

## Related Questions

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The surface area of a cube can be found by finding the length of any of the cube's edges, then multiplying that length by itself, then multiplying its product by six. This equation can be written as A=6e^2, where e stands for the length of any of the cube's edges.

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In order to find the length of a curved line, or arc length, it is necessary to know the function of the line. Once this is determined, differentiate the function, plug the equation into the arc length formula, and then integrate the formula.

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To find the surface area of any space, multiply the length of that space by its width. To find the area of a room for carpeting, you need a measuring tape and a calculator.