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3. Triangle DEF is a scale copy of triangle ABC. What is the length of DF? Explain your
reasoning?

4. Rectangle A measures to be 10 inches long and 14 inches wide. Rectangular scaled copy of Rectangle A. Which of the following could be side length

A. 20 inches long and 7 inches wide
B. 5 inches long and 28 inches wide
C. 15 inches long and 21 inches wide
D. 11 inches long and 15 inches wide
E. none of the above

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chronos14

Answer:

E

Step-by-step explanation

I assume scale copy is when you shrink the shape, all the sides are shrink, and when we expand the shape, all the sides are expanded. from the choices, nothing matched my assumption.

Sometimes the long is shrink, but the wide is expanded, vice versa. So E is my answer.

if the L = 5, then W must be 7 inches

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