A polygon is simply a shape with three or more sides and angles. Quadrilaterals are 2D shapes with four sides and angles. There are six special quadrilaterals with different properties. A rectangle ...

Area of Rectangle Formula: What is area? What is a rectangle? What is the area of a rectangle and how does one calculate the area of a rectangle? In this article, we have explained all concepts ...

The base and perpendicular height are at right angles. Showing that a parallelogram has the same area as a rectangle: Split the parallelogram into a right-angled triangle and a trapezium. Move the ...