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Shape Areas
Various calculators for finding the area and perimeter of two dimensional shapes.
 Annulus Calculate the area and circumference of an annulus. A donut shaped area.
 Circle Calculate the area and circumference of a circle.
 Ellipse Calculate the area, eccentricity, focus, and circumference of an ellipse.
 Irregular Polygon, traverse Calculate the area of an irregular polygon given side lengths and bearings.
 Parallelogram Calculate the area or perimeter of a parallelogram.
 Rectangle Calculate the area, length, width, or perimeter of a rectangular shape.
 Sector of a Circle Calculate the area or perimeter of a sector of a circle. A piece of pie shaped area.
 Square Calculate the area or perimeter of a perfect square.
 Trapezoid Calculate the area of a trapezoid. A shape with two parallel sides.
 Triangle, equilateral Calculate the area or perimeter of an equilateral triangle. Sometimes called a regular triangle, it has three equal sides.
 Triangle, right Calculate the area or perimeter of a right triangle, a triangle with one angle that equals 90 degrees.
 Triangle, scalene Calculate the area or perimeter of a scalene triangle, a triangle with three sides of different length.
Return to the Objects and Shapes section.
