Cross-Sectional Area Calculator
Result
Cross-sectional area: 0 square units
About Cross-Sectional Area
The cross-sectional area is the area of a two-dimensional shape obtained by cutting through a three-dimensional object. Common formulas:
Circle
A = πr²
Where r is the radius
Rectangle
A = width × height
Where width and height are the dimensions
Triangle
A = (base × height) / 2
Where base and height are the dimensions
Trapezoid
A = (a + b) × h / 2
Where a and b are the parallel sides, h is the height
Regular Hexagon
A = (3√3 × s²) / 2
Where s is the side length
Hollow Circle
A = π(R² - r²)
Where R is outer radius, r is inner radius
Hollow Rectangle
A = (W × H) - (w × h)
Where W,H are outer dimensions, w,h are inner dimensions