Triangle Area Calculator
Base (b)
units
Height (h)
units
Side a
units
Side b
units
Side c
units
Side a
units
Side b
units
Angle (θ)
°
A(x)
A(y)
B(x)
B(y)
C(x)
C(y)
Results
Formulas Used
- Base & Height: A = ½ × b × h
- Three Sides (Heron's Formula): A = √(s(s-a)(s-b)(s-c)) where s = (a+b+c)/2
- Two Sides & Angle: A = ½ × a × b × sin(θ)
- Coordinates: A = ½|(x₁(y₂-y₃) + x₂(y₃-y₁) + x₃(y₁-y₂))|