**Title:** Area of a Triangle

**Description:**
This video shows students how to find the area of a triangle.

**Standard(s): **

[MA2015] PRE (9-12) 35: (+) 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. (*Apply formulas previously derived in Geometry.*) [G-SRT9] (Alabama)