Area of Triangle using "Side Angle Side"-Geometry Help

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How to use side angle side in order to find the area of a triangle.
If you have a triangle with a side of 9 and a side of 15 along with an angle of 110 degrees you can use side angle side "SAS" in order to find the area.
The formula you would use is
1/2*side*side * sin of the angle

Questions answered with this video..
When would you use "SAS" side angle side to find area?
If a triangle has side lengths of 9 and 15 units how do you find the area?
What is an included angle?
How do you find sine on a calculator?

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