Notes: For Area mode provide base and corresponding height. For Perimeter mode provide three sides (triangle inequality enforced); additional properties (angles, inradius, etc.) are computed.
Triangles are among the basic geometric shapes, utilized in architecture, engineering, measurement, and common problem-solving tasks. Whether you are a student, educator, designer, or engaged in practical measurements, our Triangle Area & Perimeter Calculator simplifies the calculations.
What Is Triangle Area?
The area of a triangle is the total space enclosed within its three sides. In simple terms, it tells you how much surface the triangle covers.
Formula:
Where,
- Base (b) = Any side considered as the bottom of the triangle
- Height (h) = Perpendicular distance from the base to the opposite vertex
Triangle Area using Heron’s Formula (if all 3 sides are known)
Where,
and a, b, c are the three sides.
What Is Triangle Perimeter?
The perimeter of a triangle is the total distance around it. It represents the sum of all three sides.
Where a, b, c are the lengths of the sides.
How to use our Triangle Area and Perimeter Calculator?
- Select “Mode”,i.e., “Area” or “Perimeter”.
- Enter the required values.
- Click “Calculate” to find the Area and Perimeter of the triangle.
