Explanation

What is Triangle?

A triangle has three sides, and its area can be computed when all side lengths are known.

What this calculator does

Find triangle perimeter and area from three sides (Heron's formula).

Inputs you need

• Side a
• Side b
• Side c

Formula

• Perimeter: a + b + c
• Heron's area: sqrt(s(s-a)(s-b)(s-c)), where s = (a+b+c)/2

Example

For sides 7, 8, 9:

• Perimeter = 24
• Area ≈ 26.83

Quick input set you can try:

• Side a: 7
• Side b: 8
• Side c: 9

FAQ

1) What does this calculator help with? It helps you calculate Triangle quickly and with consistent formulas.

2) Which formula is used? It uses the standard method shown in the formula section on this page.

3) Can I use decimal values? Yes. Decimal values are supported for most numeric fields.

4) Should I rely on this for final decisions? Use it as a practical estimate, and verify critical decisions with official documents or expert advice.