Open Up - Grade 7 - Mathematics - Unit 1 - Lesson 11

By Formative Library
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Last updated about 2 years ago
6 Questions
1
1.
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.)

a. 1 in to 1 ft
b. 1 in to 1 m
c. 1 in to 1 yd
  1. A
  2. B
  3. C
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2.
Which scales are equivalent to 1 inch to 1 foot? Select all that apply.
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3.
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?
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4.
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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5.
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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6.
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 factors for each of the following:
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From T to S
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From S to R
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From R to T
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From T to R
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