czee2020 czee2020

29-11-2017
Mathematics

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altavistard altavistard

02-12-2017

Calculate and compare the lengths of AB and A'B':

|AB| = sqrt(3^2 + 2^2) = sqrt(13)

|A'B'| = sqrt(6^2 + 4^2) = sqrt(36+16) = sqrt(52) = 2sqrt(13)

That "2" tells us that the dilation factor is 2.

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