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Calculate the area of seven common shapes using length, width, radius, angle, or semi-axes. Learn the formulas and examples for rectangles, triangles, trapezoids, circles, sectors, ellipses, and parallelograms.
- Triangle Calculator
Area of a Triangle. There are multiple different equations...
- Volume Calculator
Related Surface Area Calculator | Area Calculator. Volume is...
- Triangle Calculator
Calculate the area of various shapes like square, rectangle, triangle, circle, and more with this online tool. Enter the required measurements and get the area in squared units, with formulas and explanations.
Calculate the area of any basic shape with this intuitive tool. Choose from sixteen different shapes, such as squares, rectangles, triangles, circles, and more, and see the formulas and examples for each one.
- Rectangle. The area of a rectangle describes the number of unit squares that can fit within the rectangle's borders. For example, the area of a rectangle with side lengths of 3 meters and 2 meters can be calculated by dividing the surface into unit squares and counting the number of those squares
- Triangle. There are several formulas for calculating the triangle area. This area calculator uses the semi-perimeter formula or Heron's formula: $$A=\sqrt{s(s-a)(s-b)(s-c)}$$
- Trapezoid. The area of a trapezoid can be calculated with the help of the following formula: A = 1/2 × (b₁ + b₂) × h. where b₁ and b₂ are the bases of the trapezoid (the parallel sides of the trapezoid), and h – is its height.
- Circle. The area of a circle is calculated with the help of the following formula: A = π × r² where π ≈ 3.1415926, and r is the radius of the circle. Calculation example.
Calculate the area of rectangles, circles, triangles, and other shapes with this online tool. Enter the measurements, choose the figure type, and get the result in square units.
Jul 30, 2024 · Calculate the area, perimeter, and diagonal of a rectangle using its length and width or diagonal. Learn the formulas, properties, and examples of rectangles and golden rectangles.
Jul 30, 2024 · Calculate the area of a circle using a diameter or a radius with this online tool. Learn the formula, see the step-by-step solution, and explore related topics such as circumference, pie chart, and sector of a circle.
