Perimeter Calculator Use this perimeter calculator to easily calculate the perimeter of common bodies like a square, rectangle, triangle, circle, parallelogram, trapezoid, ellipse, regular octagon, and sector of a circle. Formulas and explanation below. Learn how to find the perimeter of regular and irregular shapes using formulas and examples. Explore real-world applications of perimeter and practice problems with interactive games. Perimeter is the distance around a two-dimensional shape or a one-dimensional line. Learn how to calculate the perimeter of various shapes, such as circles, triangles, polygons, and curves, using formulas and examples. Perimeter of Different Shapes – Formulas We know every shape is different from one another. Thus, the formula for perimeters of geometric shapes also varies from one shape to another. Some common shapes and formula for finding their perimeters are as follows. Perimeter of Rectangle Rectangle is a four-sided polygon having two dimensions i.e. length and breadth. Perimeter of a rectangle = sum of four sides = AB + BC + CD + AD = length + breadth + length + breadth = 2 length + 2 breadth ...
