Lesson 1: Practice Problems

Problem 1

Here is a figure that looks like the letter A, along with several other figures. Which figures are scaled copies of the original A? Explain how you know.

The figure A with scaled and non-scaled copies.

Problem 2

Tyler says that Figure B is a scaled copy of Figure A because all of the peaks are half as tall.

Do you agree with Tyler? Explain your reasoning.

Two 12 sided figures in the shape of a W are labeled A and B. Both figures are composed of vertical and horizontal line segments that meet at a right angle. In figure A, the height is labeled 4 centimeters and in figure B, the height is labeled 2 centimeters. The width of both figures, appear to be the same, and is not labeled.

Problem 3

Here is a picture of the Rose Bowl Stadium in Pasadena, CA.

A satellite image looking down on a stadium in the shape of an oval. The stadium is slightly wider than it is tall.

Here are some copies of the picture. Select all the pictures that are scaled copies of the original picture.

  1. Scaled Image. A.
  2. Scaled Image. B.
  3. Scaled Image. C.
  4. Scaled Image. D.

Problem 4

Complete each equation with a number that makes it true.