Area of a Triangle

Published on: April 12, 2026
Final Answer: Free • Full Steps: Pro

This Area of a Triangle Calculator helps you find the area of the triangle formed by two 3D vectors. First calculate the cross product of the vectors, then find the magnitude of that result and divide by 2. This gives the area of the triangle. It is a simple way to check answers, understand the method clearly, and practise vector operations step by step.

Step-by-step method

  1. Identify the vector components.
  2. Compute the cross product A × B.
  3. Use Area = 1/2 · |A × B| and simplify.

Formula:

\(\text{Area} = \frac{1}{2}\left|\vec{A} \times \vec{B}\right|\)