Finding Area of a Triangle using Sine

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Finding Area of a Triangle using Sine

Slides designed to teach finding area of a triangle using sine.  A total of 3 slides with space to illustrate and write during the lesson and the file you download contains a jpeg, PDF, and power point file.

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.

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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