Triangle Calculator
Calculate the perimeter and area of a triangle using Heron’s formula.
For sides \(a\), \(b\), and \(c\): $$ \text{Perimeter} = a+b+c,\quad s=\frac{a+b+c}{2},\quad \text{Area} = \sqrt{s(s-a)(s-b)(s-c)}. $$
Step 1: Enter Triangle Sides
Enter the length of side a
Enter the length of side b
Enter the length of side c