Lesson 13: Practice Problems

Problem 1

Which of these four figures are congruent to the figure shown?

A rhombus with three blue dots in a line in the middle
  1. A rhombus with three blue dots in a line in the middle. The dots are farther apart than original.
  2. A rhombus with three blue dots in a line in the middle
  3. A rhombus with three blue dots in a line in the middle. The rhombus is rotated.
  4. A rhombus with three blue dots in a line in the middle. The rhombus is rotated.

Problem 2

These two figures are congruent, with corresponding points marked.

Shape ABC and A'B'C'

  1. Are angles and congruent? Explain your reasoning.

  2. Measure angles and to check your answer.

Problem 3

Here are two figures.

Oval A and oval B

Show, using measurement, that these two figures are not congruent.

Problem 4 From Unit 1 Lesson 3

Each picture shows two polygons, one labeled Polygon A and one labeled Polygon B. Describe how to move Polygon A into the position of Polygon B using a transformation.

  1. Blue polygon A and green polygon B
  2. Blue polygon A and green polygon B
  3. Blue polygon A and green polygon B