Calculate triangle area, perimeter, angles with step-by-step explanations.
A = (1/2) × base × height
Using base and height
P = a + b + c
Sum of all sides
A = √(s(s-a)(s-b)(s-c))
Where s = (a+b+c)/2
a² + b² = c²
For right triangles
Base: 10, Height: 8
Base: 12, Height: 9
Base: 8, Height: 6
Base: 6, Height: 5
A triangle is a three-sided polygon with three angles. It is one of the most fundamental shapes in geometry and has many important properties.