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a stop sign has the shape of and octagon with each side measuring 0.5ft. to make a scale model to the sign, every dimesion is m...Asked by Kylie
A stop sign has the shape of an octagon with each side measuring 0.5 ft. To make a scale model of the sign, every dimension is multiplied by 1/20. How is the ratio of the areas related to the ratio of the corresponding dimensions? What is the ration of the areas?
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Answered by
Damon
area varies as the square of length dimension. (note square A = X^2, circle A = pi R^2)
If you multiply every length by 1/20, you multiply every area by 1/400
If you multiply every length by 1/20, you multiply every area by 1/400
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