Area of a Triangle SAS Calculator

You might be familiar with the formula of a triangle's area given its base and height:

In the triangle above, we know only its two sides, aa and bb, and the angle γγ between them. If we consider the side bb as the triangle's base, using trigonometry, we obtain its height as:

Therefore, the SAS area formula for a triangle is given by:

We can use this formula to calculate the triangle area with 2 sides and an angle.

To find the area of a triangle given its two sides a and b, and the inscribed angle γ, follow these simple steps:

1. Multiply the lengths of the two sides together to get a × b.
2. Multiply this value with the sine of the angle γ, to get a × b × sin(γ).
3. Divide this value by half to get the triangle area as A = (a × b × sin(γ))/2.
4. Verify using our area of a triangle SAS calculator.

We have put together a collection of similar calculators that you might find useful:

• Triangle area calculator;
• Similar triangles calculator;
• 3 sides triangle area calculator;
• Square feet of a triangle calculator;
• Scalene triangle area calculator;
• Area of an obtuse triangle calculator;
• Area of oblique triangle calculator;
• Area of triangle with coordinates calculator.

Our calculator for the area of a triangle given 2 sides and an angle is simple and easy to use:

1. Enter the two sides you know.
2. Provide the value of the inscribed angle. The calculator will automatically find the area.

And just like that, you can find the triangle area with 2 sides and an angle. Note that this area of a triangle SAS calculator can also work backward! Play around with it providing different inputs in any order, and enjoy the results!