Scalene Triangle Area Calculator

Triangles are ubiquitous in geometry, but you're in the right place if you're looking for something about scalene triangles particularly. Scalene triangle area calculator will help you find the area of the figure no matter what data you have given. Sides? Angles? Height and base? – we've covered them all with special scalene triangle area formulas. Read on and get to know more about triangles!

A scalene triangle is a triangle with three sides, all of different lengths. There are no two or three sides of the same length in a scalene triangle.

Using our tool is simple & intuitive!

1. In the first row, choose the mode you want to work in. It depends on which data about your triangle you know.
2. Let's assume we know the three sides, so we choose the mode three sides SSS (side-side-side).
3. Under the triangle image, we can see three empty fields. Input the lengths of the sides.
4. Our calculator works automatically and gives you the answer right away.
5. To use a different mode, just choose it in the first row. No need to clear the data.
6. Now you know how to use the scalene triangle area calculator!
7. Remember that all the scalene triangle area formulas are available in the text below in case you need them.

There are four ways to find the area of a scalene triangle. The use depends on which data you have given.

Scalene triangle area formulas with known:

1. Base ($b$) and height ($h$)

2. Three sides ($a$, $b$, $c$)

3. Two sides and the angle between them (sides – $a$, $b$; angle – $\gamma$)

4. Two angles ($\gamma$, $\beta$) and a side between them ($a$)

If you want to know more about triangles, check out the rest of our triangle area calculators:

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

No, not all scalene triangles are acute. A scalene triangle might be right, acute, or obtuse.

To calculate the scalene triangle area, use one of these equations:

1. area = 0.5 × b × h, where b – the base, h – height.
2. area = 0.25 × √[(a + b + c)(-a + b + c)(a - b + c)(a + b - c)], where a, b, c – triangle's sides.
3. area = 0.5 × a × b × sin(γ), where a, b - sides; γ – an angle between those sides.
4. area = a² × sin(β) × sin(γ) / (2 × sin(β + γ)), where β, γ – angles, a – side between those angles.

The area of this triangle is 6.495 in². To find the triangle area with three sides:

1. Use Heron's formula:
   area = 0.25 × √[(a + b + c)(-a + b + c)(a - b + c)(a + b - c)]
2. Knowing all three a, b, c, solve the equation.
3. The answer is 6.495 in².

There are no equal sides in a scalene triangle. A scalene triangle is a triangle with three unequal sides.