Chapter 3

Section 0 - Complementary, Supplementary, and Vertical Angles

• Khan Academy - Identify Supplementary, Complementary, and Vertical Angles
• IXL - Identify Supplementary, Complementary, Vertical, Adjacent and Congruent Angles
• Khan Academy - Angles Between Intersecting Lines

Section 1 - Parallel Lines and Traversals

• IXL - Find Angle Measures
• Khan Academy - Angle relationships with parallel lines (Solve for x)
• Khan Academy - Equation practice with angle relationships
• IXL - Name Angle Pairs

Section 2 - Angles of Triangles

• Khan Academy - Find angles in triangles
• Khan Academy - Find angles in isosceles triangles
• IXL - Exterior angles (Includes equation practice)
• Khan Academy - Exterior Angles
• Khan Academy - Understanding Exterior Angles
• Khan Academy - Find angles using triangles (with parallel lines or exterior angles) *Can be challenging

Section 3 - Angles of Polygons

*not an 8th grade math standard

Section 4 - Using Similar Triangles

• Khan Academy - Determine similar triangles: AA
• Khan Academy - Determine similar triangles: SSS
• Similar triangles and indirect measurement (Find the missing side length)
• IXL - Similar triangles and indirect measurement (Find the missing side length)