Find the Right Hands
A person’s hands are mirror images of each other. In the diagram, the left hand is labeled. Shade
all of the right hands.
Unit 3: Rigid Transformations and Congruence Lesson 8: What is the Same?
Are They the Same?
For each pair of shapes, decide whether or not they are the same.
Unit 3: Rigid Transformations and Congruence Lesson 8: What is the Same?
Area, Perimeter, and Congruence
1. Which of these rectangles have the same area as rectangle
2. Which rectangles have the same perimeter but different areas?
3. Which have the same area and the same perimeter?
Unit 3: Rigid Transformations and Congruence Lesson 8: What is the Same?
but a different perimeter?
4. Use materials from the geometry tool kit to decide which rectangles are congruent. Shade
congruent rectangles with the same color.
Unit 3: Rigid Transformations and Congruence Lesson 8: What is the Same?
Are you ready for more?
1. Find the area of both polygons.
2. Find the perimeter of both polygons.
3. Are the polygons congruent? Explain your reasoning.
Unit 3: Rigid Transformations and Congruence Lesson 8: What is the Same?