2D Mensuration

Learn formulas for perimeters and areas of all 2D shapes with clear explanations and examples for CBSE and competitive exams.

1.Perimeter of a Rectangle

Learn how to calculate the perimeter of a rectangle using length and breadth with simple formulas and examples.

2.Perimeter of a Square

Understand how to find the perimeter of a square using the length of its side. Includes formula, explanations and examples.

3.Perimeter of a Triangle

Learn how to calculate the perimeter of different types of triangles using simple formulas and step-by-step examples.

4.Perimeter of a Parallelogram

Find the perimeter of a parallelogram using its side lengths. Easy explanations ideal for CBSE and school exams.

5.Perimeter of a Trapezium

Learn how to calculate the perimeter of a trapezium using the lengths of all its sides with clear examples.

6.Perimeter of a Polygon

Understand how to find the perimeter of regular and irregular polygons using simple formulas and examples.

7.Area of a Rectangle

Learn how to calculate the area of a rectangle using length and breadth with easy explanations and examples.

8.Area of a Square

Understand the formula for the area of a square and learn how side length affects the total area.

9.Area of a Triangle

Explore formulas for the area of triangles, including base-height and Heron's formula, with solved examples.

10.Area of a Parallelogram

Learn how to find the area of a parallelogram using base and height, with easy diagrams and examples.

11.Area of a Trapezium

Understand how to calculate the area of a trapezium using its parallel sides and height with clear examples.

12.Area of a Circle

Learn the formula πr² for calculating the area of a circle and see how radius affects the area.

13.Area of a Sector

Understand how to find the area of a sector using radius and central angle with simple examples.

14.Area of a Segment

Learn how to calculate the area of a circular segment using sector area and triangle area.

15.Area of Composite Figures

Learn how to calculate the area of composite shapes formed by combining basic geometric figures.