Question

Rectangle DEFG is dilated by a scale factor of 2.what is the area of rectangle D’ E’ F’ G’

Answer 1

C. 12 square units

Explanation:

Length of side E'F' = EF*scale factor = 3*2 = 6 units

Length of side D'E' = DE*scale factor = 1*2 = 2 units

Area of rectangle = length * width

Therefore, area of rectangle D’E’F’G’ = length of side E'F' * length of side D'E' = 6*2

area of rectangle D’E’F’G’ = 12 square units