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Common Core (Geometry)

Common Core for Mathematics

**Area of a Triangle Using Sine**

Derivation and practice of a new area formula for triangles using the sine function.
**The Area of a Triangle using Sine**

This video explains how to derive the formula and how to determine the area of a triangle using the sine function.

**SAS Triangle Area Formula**

Derivation and application of sas triangle area formula.
**Example: Determine the Area of a Triangle Using the Sine Function**

This video provides an example of how to determine the area of a triangle using the sine function.

Common Core (Geometry)

Common Core for Mathematics

Common Core: HSG-SRT.D.9

Example, solutions, videos, and lessons to help High School students learn how to 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.Derivation and practice of a new area formula for triangles using the sine function.

This video explains how to derive the formula and how to determine the area of a triangle using the sine function.

Derivation and application of sas triangle area formula.

This video provides an example of how to determine the area of a triangle using the sine function.

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