Public learning track
Right Triangle Trigonometry and Applications
8th Grade · Math · Open Global Math
12 lessons
Goal
Define and evaluate acute right-triangle trigonometric ratios, recall exact values for special angles, and solve right triangles in applied contexts.
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Trigonometric Ratios in a Right Triangle
12 lessons
0 of 12 done
- 1Trigonometric Ratios in a Right TriangleUp nextStart
- 2Finding Trigonometric Ratios from Side LengthsPremiumNot started yet
- 3Trigonometric Ratios of Complementary AnglesNot started yet
- 4Exact Trigonometric Ratios for 45-45-90 TrianglesNot started yet
- 5Exact Trigonometric Ratios for 30-60-90 TrianglesNot started yet
- 6Fluency Practice: Trigonometric Ratios of 30°, 45° and 60°Not started yet
- 7Finding Sides of Right Triangles Using Trigonometric RatiosNot started yet
- 8Finding Angles of Right Triangles Using Trigonometric RatiosNot started yet
- 9Solving Right TrianglesNot started yet
- 10Right Triangle Trigonometry Word Problems: Angles of ElevationNot started yet
- 11Right Triangle Trigonometry Word Problems: Angles of DepressionNot started yet
- 12Multi-Step Applications of Trigonometry in Navigation and SurveyingNot started yet
Curriculum Framework
8th Grade · Math · Open Global Math
1
9 lessons
Rigid Transformations and Coordinate Mappings
Verify, represent algebraically, and apply translations, reflections, and rotations on the coordinate plane while proving preservation of length, angle measure, and parallelism.
2
11 lessons
Dilations, Homothety, and Triangle Similarity
Analyze dilations on and off the coordinate plane, establish triangle similarity criteria (AA, SAS, SSS), and apply Thales' intercept theorem.
3
12 lessons
Right Triangle Trigonometry and Applications
Define and evaluate acute right-triangle trigonometric ratios, recall exact values for special angles, and solve right triangles in applied contexts.
4
8 lessons
3D Spatial Projections, Multi-View Drawings, and Geometric Nets
Analyze 3D projections, sketch three-view drawings (front, top, side), and construct accurate models from geometric nets of prisms, cylinders, and cones.