Want to change the area unit? Simply click on the unit name, and a drop-down list will appear.
#Area of rectangle how to#
From there, we’ll tackle trickier shapes, such as triangles and circles. Corbettmaths - This video explains how to find the area of a rectangle.
We’ll start with the area and perimeter of rectangles. Hexagon area formula: A = 3/2 × √3 × a² Area and perimeter help us measure the size of 2D shapes.The basic unit of area in the metric system is the square meter, which is a square that has 1 meter on each side: 1 square meter. Pentagon area formula: A = a² × √(25 + 10√5) / 4 Example: When each square is 1 meter on a side, then the area is 15 m 2 (15 square meters) Square Meter vs Meter Square.Trapezoid area formula: A = (a + b) × h / 2.
Circle sector area formula: A = r² × angle / 2 Similarly we can find the areas of the other rectangles by counting the number of.For the sake of clarity, we'll list the equations only - their images, explanations and derivations may be found in the separate paragraphs below (and also in tools dedicated to each specific shape).Īre you ready? Here are the most important and useful area formulas for sixteen geometric shapes: Well, of course, it depends on the shape! Below you'll find formulas for all sixteen shapes featured in our area calculator.
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