Answer: C) Three-fourths
I.e., the fraction 3/4
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Step-by-step explanation:
Let's pick on the horizontal sides. Divide the image length Y'Z' = 9 over the corresponding preimage length YZ = 12 to get
(Y'Z')/(YZ) = 9/12 = 3/4 which is the scale factor
The scale factor is less than 1, meaning the image's lengths are shorter compared to the preimage's corresponding lengths.
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Alternative Paths:
You can pick any other pair of corresponding sides to get the same result:
- (X'Y')/(XY) = (7.5)/(10) = 75/100 = 3/4
- (Z'X')/(ZX) = 6/8 = 3/4