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$$2p = {S}_{1} + {S}_{2} + {S}_{3}$$
Perimeter
$$A = \frac{b \times h}{2}$$
Area
$$b = \frac{A \times 2}{h}$$
$$h = \frac{A \times 2}{b}$$
$$A = \sqrt{p \times (p - {S}_{1}) \times (p - {S}_{2}) \times (p - {S}_{3}) }$$
Heron's Formula
Definition
A triangle is a polygon with three sides.
Properties
- Generic Triangle's formulas are valid for any triangles
Generic Triangle Formulas
| Data | Formula |
|---|---|
| Perimeter | 2p = S1 + S2 + S3 |
| Area | A = (b × h) / 2 |
| Base | b = (A × 2) / h |
| Height | h = (A × 2) / b |
| Heron's Formula | A = √[ p × (p - S1) × (p - S2) × (p - S3) ] |