Question

What will be the new coordinate of vertex B if the triangle is dilated with a center at the origin by a scale factor of 1/3

Answer 1

You must observe the distances from the center of the dilation at point A to the other points B, C and D. The dilation image will be 1/3 of each of these distances. AB = 6, so A'B' = 2. AD = 9, so A'D' = 3.

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