Unit 5: Triangles

Common Core Standards:

• Use informal arguments to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles.   8.G.5
• Explain a proof of the Pythagorean Theorem and its converse.   8.G.6
• Apply the Pythagorean Theorem to determine unknown side lengths in right triangles in real-world and mathematical problems in two and three dimensions.   8.G.7
• Apply the Pythagorean Theorem to find the distance between two points in a coordinate system.   8.G.8

2008 Math Standards:

• Make and test a conjecture about how to find the midpoint between any two points in the coordinate plane.   M08-S4C3-01