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Both calculators run independently — change the inputs on either side to compare results.

Geometry

Triangle Area Calculator

Find the area of a triangle from its three side lengths using Heron's formula. Ideal for geometry homework, land surveying, and construction layouts.

Fill in the required fields to see your result.
Geometry

Trapezoid Area Calculator

Calculate the area of any trapezoid by entering its two parallel bases and height. Useful for land surveying, architecture, and geometry problems involving quadrilaterals with one pair of parallel sides.

Fill in the required fields to see your result.

Key differences

Triangle Area CalculatorTrapezoid Area Calculator
CategoryGeometryGeometry
Inputs required33
ResultTriangle Area (square units)Trapezoid Area (square units)
What it doesFind the area of a triangle from its three side lengths using Heron's formula. Ideal for geometry homework, land surveying, and construction layouts.Calculate the area of any trapezoid by entering its two parallel bases and height. Useful for land surveying, architecture, and geometry problems involving quadrilaterals with one pair of parallel sides.