Omni Calculator logo

Looking for the ultimate scalene triangle calculator? You've definitely come to the right place!

The next 300 words will introduce you to the world of scalene triangle solver and every possible irregular triangle area calculation – keep on reading to discover:

This scalene triangle solver is based on a similar triangle height calculator. 💎

What is a scalene triangle?

A scalene triangle is a triangle that comprises three unequal sides. To put it simply, all of its sides have completely different lengths.

The scalene triangle calculator on your left allows you to calculate the area of a scalene triangle, as well as its perimeter, sides, heights and angles!

💡 Take a look at the triangle area calculator and the perimeter of a triangle calculator to find out more!

How do I calculate the perimeter of a scalene triangle?

Calculating the perimeter of a scalene triangle is extremely simple!

  1. Follow the formula:

    Perimeter = a + b + c

    where:

    • a, b, and c are sides of the scalene triangle.
  2. Enjoy the results – you've finished the easiest part of scalene triangle calculations! 🎉

How to calculate the area of a scalene triangle?

We may use multiple equations – the area of a scalene triangle is calculated in exactly the same way as for all the triangles.

Let's choose the equation that suits you best:

  • Area = 0.5 × Base × Height

  • Area = 0.5 × a × b × sin(γ)

  • Area = 0.25 × √((a + b + c) × (-a + b + c) × (a - b + c) × (a + b - c))

  • Area = a² × sin(β) × sin(γ)/ (2 × sin(β + γ))

How to calculate a scalene triangle's height?

There are a few scalene triangle equations that may be of help:

  • Calculate height for any triangle:

    Height = 2 × Area/ Base

    Height = 0.5 × √((a + b + c) × (-a + b + c) × (a - b + c) × (a + b - c)) / b

  • For the right triangle:

    Heightᶜ = a × b / c

    where:

    • a, b, and c are sides of the triangle; and

    • Heightᶜ is the height of a base c.

How to calculate the area of a scalene right triangle?

The formula for the area of a scalene right triangle is just the same as for any other right triangle:

Area = a × b / 2

or

Area = b × √(c² - b²) / 2

where:

  • a and b are the perpendicular sides; and
  • c is the hypotenuse.
Łucja Zaborowska, MD, PhD candidate
Special triangle?
no
Triangle with heights, sides and angles







Sides
a
in
b
in
c
in
Heights (altitudes)
hᵃ
in
hᵇ
in
hᶜ
in
Angles
α
deg
β
deg
γ
deg
Others
Area
in²
Perimeter
in
Check out 19 similar triangle calculators 🔺
30 60 90 triangle45 45 90 triangleArea of a right triangle… 16 more
People also viewed…

Circumference

Use this free circumference calculator to find the area, circumference and diameter of a circle.

Decagon

Decagon calculator will teach you all there is about regular polygons with ten sides and ten angles!

Decimal degrees to degrees minutes seconds converter

Our decimal degrees to degrees minutes seconds converter can help you convert the angle from decimal degrees to degrees with minutes and seconds.

Lost socks

Socks Loss Index estimates the chance of losing a sock in the laundry.
Copyright by Omni Calculator sp. z o.o.
Privacy, Cookies & Terms of Service