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2. Rectangle A measures 8 inches by 2 inches. Rectangle B is a scaled copy of Rectangle
A. Select all of the measurement pairs that could be the dimensions of Rectangle B.
a. 40 inches by 10 inches
b. 10 inches by 2.5 inches
c. 9 inches by 3 inches
d. 7 inches by 3 inches
e. 6.4 inches by 1.6 inches

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Answer:

a. 40 inches by 10 inches

Step-by-step explanation:

Given the measurement of Rectagle A = 8in by 2in. If rectangle B is a scaled copy, this means the length and with of the new triangle by be that of A multiplies by a constant factor.

If the scale is 5:1, this means that the dimension of Rectangle B is as shown;

Length of B = 5(8in) = 40in

Width of new Rectangle B = 2(5) = 10in

Hence the measurement pairs that could be the dimensions of Rectangle B are 40in by 10in

the rest of the measurement are not multiplied by a constant value.

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