Unit 1 - Lesson 13 - Grade 8: Illustrative Mathematics

Are any of the ovals congruent to one another? Explain how you know.

Draw line segments AD and A'D' and measure them. Do the same for segments BC and B'C' and for segments AE and A'E'. What do you notice?

Do you think there could be a pair of corresponding segments with different lengths? Explain.

Are these faces congruent? Explain your reasoning.

Are Figures A and B congruent? Explain your reasoning.