Read Online Pythagorean Theorem Worksheet And Answer Key Hands-On Algebra! Lay a solid foundation of algebra proficiency with over 155 hands-on games and activities. To complement the natural process of learning, each activity builds on the previous one-- from concrete to pictorial to abstract. Triangle sides pythagorean theorem 1 worksheet for 7th grade children. This is a math PDF printable activity sheet with several exercises. It has an answer key attached on the second page. This worksheet is a supplementary seventh grade resource to help teachers, parents and children at home and in school.