Area measures the space inside a two-dimensional shape. Different shapes require different formulas, but the concept remains the same: counting square units covered.
Rectangle and Square
Area = length * width. A 5 by 8 rectangle covers 40 square units.
Circle
Area = pi * r^2. Radius 4 gives area about 50.27. Use the Circle Calculator.
Triangle
Area = 0.5 * b * h. The Area Calculator supports multiple shapes in one tool.
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