Converse of the Pythagorean Theorem
Tenth graders investigate the converse of the Pythagorean Theorem. In this geometry lesson, 10th graders explore how they can use the side lengths of a triangle to classify the triangle as right, acute, or obtuse.
10th Math 3 Views 9 Downloads
Trigonometry and the Pythagorean Theorem
Ancient Egyptians sure knew their trigonometry! Pupils learn how the pyramid architects applied right triangle trigonometry. When comparing the Pythagorean theorem to the trigonometric ratios, they learn an important connection that...
9th - 11th Math CCSS: Designed
Prove the Pythagorean Theorem Using Similarity
Amaze your classes with the ability to find side lengths of triangles immediately — they'll all want to know your trick! Learners use the Pythagorean Theorem and special right triangle relationships to find missing side lengths.
9th - 10th Math CCSS: Designed
New Review Geometry: Angles, Triangles, and Distance
The Pythagorean Theorem is a staple of middle school geometry. Scholars first investigate angle relationships, both in triangles and in parallel lines with a transversal, before proving and applying the Pythagorean Theorem.
7th - 10th Math CCSS: Designed
Proofs into Practice: The Pythagorean Theorem in the Real World
As an introduction to the instructional activity, learners verify the Pythagorean theorem with a hands-on proof. Then, pupils use the theorem to determine whether three side lengths could form a right triangle and choose one of two...
8th - 12th Math CCSS: Designed