Angles

Videos: AA Triangle Similarity Triangle Sum Theorem (9-49) Angle Relationship Worksheet Help Exterior Angles: Triangle Sum Theorem:  The sum of all angles in a triangle always equal 180 degrees Triangle Inequality Theorem:  Used to see if three lengths can form a triangle  https://www.mathgames.com/skill/8.46-transversal-of-parallel-lines https://www.mathgames.com/skill/8.62-find-missing-angles-in-triangles-and-quadrilaterals https://www.mathgames.com/skill/8.84-identify-angles-by-type https://www.mathgames.com/skill/8.85-complementary-supplementary-vertical-and-adjacent-angles

Volume

Volume of a Cylinder Volume of a Sphere Volume of Cone Practice:  Volume of Prisms & Cylinders:  https://www.mathgames.com/skill/8.48-volume-of-prisms-and-cylinders Volume of Pyramids & Cones:  https://www.mathgames.com/skill/8.49-volume-of-pyramids-and-cones Volume & Surface Area of a Sphere:  https://www.mathgames.com/skill/8.50-volume-and-surface-area-of-sphere