MathG9 Geometry
Grade 9 Geometry — Similarity & Right Triangles
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110 pages — ratio and proportion, similar figures and scale factor, triangle similarity by AA, SAS and SSS, geometric mean, the Pythagorean theorem and its converse, special right triangles, and right-triangle trigonometry with sine, cosine and tangent. Aligned with Common Core G-SRT.
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Ages 14–15110 pagesInstant PDF
What's Inside
- Similarity and scale factor
- Pythagorean theorem and converse
- 30-60-90 and 45-45-90 triangles
- Sine, cosine and tangent
Learning Outcomes
Proportional reasoning
Similarity proofs
Right-triangle trigonometry
Problem solving
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