### Home > CC1 > Chapter 1 > Lesson 1.1.5 > Problem 1-38

1-38.

Nadine and Diondra were working together to divide a circle into three equal parts. They came up with the diagrams shown below. Tanisha said, *“One of these pictures is wrong.”*

Note: This stoplight icon will appear periodically throughout the text. Problems that display this icon contain errors of some type. When you explain why something is a mistake, you are less likely to make the same mistake yourself. |

What do you think? Is one picture incorrect? If so, which one? Why?

Try to imagine the separate pieces of a circle being rotated or moved.

Remember that dividing the circle into three equal parts means all three sections should be the same size.