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Similarity and Trigonometry · Weeks 19-27

Area of Triangles using Trigonometry

Students will use trigonometric formulas to calculate the area of triangles, including non-right triangles.

Key Questions

  1. Explain the derivation of the area formula A = 1/2ab sin(C).
  2. Compare the trigonometric area formula with the traditional base-height formula.
  3. Design a problem where the trigonometric area formula is more efficient than other methods.

Common Core State Standards

CCSS.Math.Content.HSG.SRT.D.9
Grade: 10th Grade
Subject: Mathematics
Unit: Similarity and Trigonometry
Period: Weeks 19-27

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