Finding the Area of a Triangle using Sine

Examples, solutions, videos, worksheets, games, and activities to help students learn how to find the area of a triangle using sine.

How to find the area of a triangle using sine when given two sides and an angle?
Area of triangle = 1/2 ab sin C

Using Sine to Calculate the Area of a Triangle
Using the standard formula for the area of a triangle, we can derive a formula for using sine to calculate the area of a triangle. Using sine to calculate the area of a triangle means that we can find the area knowing only the measures of two sides and an angle of the triangle. There is no need to know the height of the triangle, only how to calculate using the sine function.

Finding the area of an oblique triangle using sine

Area of a Triangle Using Trigonometry

Finding the Area of a Triangle with Trig
A formula is developed and used to find the area of a triangle

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