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The figures are similar. 15:18 or 5:6. Find the ratio of their perimeters and the ratio of their areas.
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The figures are similar. 15:18 or 5:6. Find the ratio of their perimeters and the ratio of their areas.

User Eqiz
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Ratio of perimeter (linear measure) is the same as the scale factor (5:6).
Ratio of area (unit squared) is the square of the ratio, namely 5^2:6^2=25:36
Ratio of volume (unit cubed) is the cube of the ratio, namely 5^3:6^3=125:216

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