PSA6QJM - Practice Problems---7.1 Lesson 11: Scales without Units ( 7.G.A.1)
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Part A)

A scale drawing of a car is presented in the following three scales. Order the scale drawings from smallest to largest. (There are about 1.1 yards in a meter, and 2.54 cm in an inch.)

 

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Type the correct order of each item (eg. 1, 2, 3, etc):
Part B)

Explain your reasoning.

Type your answer below:

Which scales are equivalent to 1 inch to 1 foot? Select all that apply.

 

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Select all that apply:

A model airplane is built at a scale of 1 to 72. If the model plane is 8 inches long, how many feet long is the actual airplane?

 

Do not include units (feet) in your answer.

 

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Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part A)
Quadrilateral A has side lengths 3, 6, 6, and 9. Quadrilateral B is a scaled copy of A with a shortest side length equal to 2. Jada says, “Since the side lengths go down by 1 in this scaling, the perimeter goes down by 4 in total.”
 
Do you agree with Jada?
 
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Select one:
Part B)

Explain your reasoning.

Type your answer below:

Polygon B is a scaled copy of Polygon A using a scale factor of 5. Polygon A’s area is what fraction of Polygon B’s area?

 

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Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part A)

Figures R, S, and T are all scaled copies of one another. Figure S is a scaled copy of R using a scale factor of 3. Figure T is a scaled copy of S using a scale factor of 2.

 

Find the scale factor from T to S.

 

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Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part B)

Find the scale factor from S to R.

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part C)

Find the scale factor from R to T.

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):
Part D)

Find the scale factor from T to R.

Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2):