Triangle Calculator

Calculate triangle properties - area, angles, sides

📐 Triangle Calculator

Calculate triangle properties - area, angles, and sides

📌 Triangle Types

  • SSS: All three sides known
  • SAS: Two sides and included angle
  • ASA: Two angles and included side
  • Base-Height: For area only

Triangle Properties

Area
6.00 units²
Perimeter
12.00 units
Sides
Side a:3.00
Side b:4.00
Side c:5.00
Angles
Angle A:36.87°
Angle B:53.13°
Angle C:90.00°
Sum: 180.00°
Triangle Type
Right Triangle

📐 Area Formulas

  • Base-Height: A = ½ × base × height
  • Heron's: A = √[s(s-a)(s-b)(s-c)]
  • SAS: A = ½ab sin(C)
  • s = semiperimeter = (a+b+c)/2

📏 Laws

  • Sine: a/sin(A) = b/sin(B) = c/sin(C)
  • Cosine: c² = a² + b² - 2ab cos(C)
  • Sum of angles: A + B + C = 180°

What is Triangle Calculator?

Triangle Calculator is a comprehensive geometry tool that computes triangle properties including area, perimeter, sides, and angles using various input methods like SSS, SAS, ASA, and base-height formulas.

Whether you're a student, engineer, or designer, this calculator provides instant solutions for triangle calculations with support for all major triangle types and formulas.

Supported Calculation Types

  1. SSS (Side-Side-Side) – Calculate from three known sides
  2. SAS (Side-Angle-Side) – Calculate from two sides and included angle
  3. ASA (Angle-Side-Angle) – Calculate from two angles and included side
  4. Base-Height – Calculate area from base and height

How to Use Triangle Calculator

  1. Select Calculation Type – Choose SSS, SAS, ASA, or base-height method
  2. Enter Known Values – Input the required sides and/or angles
  3. View Results – Get area, perimeter, sides, angles, and triangle type
  4. Apply Formulas – Reference included area and law formulas

Why Use Triangle Calculator?

  • Multiple Methods: Support for all common triangle calculation approaches
  • Complete Solutions: Get all triangle properties in one calculation
  • Formula Reference: Built-in area formulas and trigonometric laws
  • Triangle Classification: Automatic identification of triangle types
  • Educational Value: Learn geometry concepts with interactive calculations

Solve triangle problems instantly with our comprehensive Triangle Calculator. Perfect for students, engineers, and anyone working with geometric calculations.

Key Features

  • Easy to Use: Simple interface for quick triangle calculator operations
  • Fast Processing: Instant results with high performance
  • Free Access: No registration required, completely free to use
  • Responsive Design: Works perfectly on all devices
  • Privacy Focused: All processing happens in your browser

Benefits

  • Time Saving: Complete tasks quickly and efficiently
  • User Friendly: Intuitive design for all skill levels
  • Reliable: Consistent and accurate results
  • Accessible: Available anytime, anywhere

FAQ

What is Triangle Calculator?

Triangle Calculator is an online tool that helps users perform triangle calculator tasks quickly and efficiently.

Is Triangle Calculator free to use?

Yes, Triangle Calculator is completely free to use with no registration required.

Does it work on mobile devices?

Yes, Triangle Calculator is fully responsive and works on all devices including smartphones and tablets.

Is my data secure?

Yes, all processing happens locally in your browser. Your data never leaves your device.