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.

G.SRT.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.

G.SRT.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).

To see the full length lesson video for these slides: http://skubes.com/lesson/finding-area-triangle-using-sine