Book excerpt: Have you ever wondered how to measure your pizza or how much ice cream is in your ice-cream cone? Basic principles of geometry, including measuring two-dimensional and three-dimensional shapes, attributes of various shapes, formulas for finding area and volume, and so much more, are explored through diagrams, photos, and informative and engaging text in this newest addition to the How Do series. About the How Do series: These fully-illustrated nonfiction picture books are a great introduction to various STEM topics. Each title includes facts and figures, simple diagrams and hilarious illustrations and is written in a question-and-answer format to encourage readers to ask questions and guess the answers before exploring the science behind the correct answers.