# Lesson 3

Making Scaled Copies

### Problem 1

Here are 3 polygons. Draw a scaled copy of Polygon A using a scale factor of 2.

Draw a scaled copy of Polygon B using a scale factor of $$\frac{1}{2}$$.

Draw a scaled copy of Polygon C using a scale factor of $$\frac{3}{2}$$.

### Solution

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### Problem 2

Quadrilateral A has side lengths 6, 9, 9, and 12. Quadrilateral B is a scaled copy of Quadrilateral A, with its shortest side of length 2. What is the perimeter of Quadrilateral B?

### Solution

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### Problem 3

Here is a polygon on a grid. Draw a scaled copy of this polygon that has a perimeter of 30 units. What is the scale factor? Explain how you know.

### Solution

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### Problem 4

Priya and Tyler are discussing the figures shown below. Priya thinks that B, C, and D are scaled copies of A. Tyler says B and D are scaled copies of A. Do you agree with Priya, or do you agree with Tyler? Explain your reasoning. ### Solution

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(From Unit 1, Lesson 1.)