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

By Formative Library
Last updated about 3 years ago
6 Questions

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. C
  2. A
  3. B
7.G.1

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

7.G.1

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?

7.G.1

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?

7.G.1

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?

7.G.1

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:

From T to S
From S to R
From R to T
From T to R
7.G.1
"Source: Open Up Resouces (Download for free at openupresources.org.)"