Dissatisfied with its shape, a triangle keeps asking the local shapeshifter to add more lines and angles until it doesn't know which side is up. Everyday Mathematics Interest Level: K-3 Reading Level: 3.9 ATOS Book Level: 3.9 AR Interest Level: LG AR Points: .5 AR Quiz: 17316EN Reading Counts Level: 4.7 Reading Counts Points: 2 Lexile Measure: 580 Lexile Code: AD (Adult Directed).