Chapter-18 Area of a Trapezium and a Polygon

About RS Aggarwal Solutions for Class 8 Maths Chapter-18 Area of a Trapezium and a Polygon

In Class 8 Maths, Chapter 18 focuses on the topic of "Area of a Trapezium and a Polygon." This chapter deals with the concept of finding the area of trapeziums and polygons using appropriate formulas and techniques. Here are some key points about the area of a trapezium and a polygon: For RS Aggarwal's class 8 Maths check out the page and if you need home tuition for class 8 Maths find the right tutors. 

Area of a Trapezium: A trapezium is a quadrilateral with one pair of parallel sides. To find the area of a trapezium, you can use the following formula:

Area = (1/2) × (sum of parallel sides) × height

The height is the perpendicular distance between the parallel sides.

Area of a Polygon: A polygon is a closed figure formed by three or more line segments. To find the area of a polygon, different methods can be used depending on the type of polygon.

Regular Polygon: A regular polygon has all sides and angles equal. The area of a regular polygon can be calculated using the formula: For RS Aggarwal's class 8 Maths check out the page and if you need home tuition for class 8 Maths find the right tutors. 

Area = (1/2) × apothem × perimeter

The apothem is the perpendicular distance from the center of the polygon to any side, and the perimeter is the sum of all the sides.

Irregular Polygon: An irregular polygon has sides and angles of different lengths and measures. To find the area of an irregular polygon, it can be divided into triangles or other simpler shapes. The area of each smaller shape is calculated individually, and then the total area is obtained by summing up the areas of all the individual shapes. For RS Aggarwal's class 8 Maths check out the page and if you need home tuition for class 8 Maths find the right tutors. 

Exercise of RS Aggarwal Solutions for Class 8 Maths Chapter-18 Area of a Trapezium and a Polygon

Class 8 Maths Area of a Trapezium and a Polygon (Ex 18A) Exercise 18.1

Class 8 Maths Area of a Trapezium and a Polygon (Ex 18B) Exercise 18.2

Class 8 Maths Area of a Trapezium and a Polygon (Ex 18C) Exercise 18.3

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