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

HSG-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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