Question

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DEF undergoes a dilation, with a scale factor of 4, to form D'E'F.
Side D'E'is 4 times the length of side DE.
What is the area of D'E'F', compared to the area of DEF?

Answer 1

Area is in square units.

Square the scale factor: 4^2 = 16

The area is 16 times the original area.