Mensuration

This topic sheds light on the area and perimeter of various solids, such as trapezium, general and special quadrilaterals and polygons. Expression of perimeter and circumference of a circle is also shown here.

This topic explains that a trapezium is a quadrilateral in which a pair of sides is parallel but the other pair of opposite sides are non-parallel. The area of a trapezium is equal to product 12 and the sum of parallel sides and distance between them.

This topic teaches us how to find the area of typical quadrilateral. A four-sided, plane figure is known as a quadrilateral. A general quadrilateral can be split into two triangles by drawing one of its diagonals.

This topic teaches us how to find the area of a polygon. A pentagon is a five-sided polygon. It can be both regular and sporadic. A regular pentagon's sides and angles are equal to 108 degrees for each inner angle and its outer angle is equal to 72 degrees.

This topic describes solid shapes. This portion shows some 3D images of geometrical shapes like cuboid, cylinder, cone and cube. 3D shapes are easy to understand and we can easily measure their parameters.

This topic defines the area of a cuboid as the sum of the area of each side of a rectangle. There are six sides of a cuboid for which each area is given by multiplying length into breadth. Similarly, area of a cube is the sum of the area of each square side.

This topic explains that the volume of a cuboid is the product of its length, breadth and height and its unit is meter to the power of three. Now since all the sides of a cube is equal therefore the volume of a cube is three times its length.

We will learn in this topic that there is not much difference between volume and capacity. Volume refers to the amount of space occupied by an object and capacity refers to the quantity that a container holds.