Triangle Sides Calculator

The Triangle Sides Calculator allows users to input the lengths of three sides of a triangle and calculates the perimeter, semi-perimeter, area using Heron’s formula, determines the type of triangle (right, obtuse, or acute), and checks if the given sides form a valid triangle.

Use Our Triangle Sides Calculator

Using the Triangle Sides Calculator

The Triangle Sides Calculator is a tool designed to help you compute various properties of a triangle given its side lengths. Follow this guide to learn how to efficiently use this calculator to determine the perimeter, semi-perimeter, area, type, and validity of a triangle.

Step 1: Enter Triangle Side Lengths

  1. Input Side A: Locate the input field labeled “Side A Length”. Enter the length of side A in the text box provided. Remember that the input must be a number greater than or equal to 0.1, and increments of 0.1 are recommended.
  2. Input Side B: Similarly, find the input field labeled “Side B Length” and enter the length of side B. Ensure the value follows the same numeric criteria as side A.
  3. Input Side C: Finally, enter the length of side C in the input field labeled “Side C Length” with similar validation rules.

Step 2: Calculate Triangle Properties

Once you have entered the side lengths, the calculator will automatically compute and display the following triangle properties:

  1. Perimeter: The sum of sides A, B, and C, formatted to two decimal places with units.
  2. Semi-Perimeter: Half of the perimeter, also formatted to two decimal places with units.
  3. Area (Using Heron’s Formula): The area of the triangle calculated using Heron’s formula, displayed in square units with two decimal places.
  4. Triangle Type: The calculator will determine if the triangle is a right triangle, obtuse, or acute based on its side lengths.
  5. Is Triangle Valid?: A verification to ensure the entered side lengths form a valid triangle according to the triangle inequality theorem.

Conclusion

Using the Triangle Sides Calculator, you can effortlessly determine important characteristics of a triangle by simply inputting its sides. This tool is especially beneficial for verifying geometric properties and understanding different triangle classifications.