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High School Geometry
Domain Similarity, Right Triangles, and Trigonometry
Cluster Apply trigonometry to general triangles

G-SRT.D. Apply trigonometry to general triangles

    G-SRT.D.9. Derive the formula $A = 1/2 ab \sin(C)$ for the area of a triangle by drawing an auxiliary line from a vertex perpendicular to the opposite side.

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    G-SRT.D.10. Prove the Laws of Sines and Cosines and use them to solve problems.

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    G-SRT.D.11. Understand and apply the Law of Sines and the Law of Cosines to find unknown measurements in right and non-right triangles (e.g., surveying problems, resultant forces).

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