   Question Answers

# Find the area and the perimeter of a rectangular plot of land whose length and breadth are 28.5 m and 20 m respectively.  Hint – In this particular type of question use the concept that the area of the rectangular plot is the multiplication of the length and breadth of the rectangle and perimeter of any shape is the sum of all the side lengths of the shape so use these concepts to reach the solution of the question. Given data:
Length and breadth of the rectangular plot are 28.5 meter and 20 meter respectively.
Let the length be denoted by L and the breadth be denoted by B.
So, L = 28.5 meter
And, B = 20 meter.
The pictorial representation of the rectangular plot is shown in the above diagram.
Now as we know that in a rectangle the opposite sides are equal to each other.
So the length of the opposite side of the rectangle is also 28.5 meter and the breadth of the opposite side of the rectangle is also 20 meter as shown in the figure.
Now as we know that the perimeter of any shape is the sum of all the side lengths of the shape.
So the perimeter of the rectangle is the sum of all the sides of the rectangle.
Let perimeter be denoted by P.
Therefore, P = 2(L + B) = 2(28.5 + 20) = 2(48.5) = 97 meter.
So the perimeter of the rectangle is 97 meter.
Now as we know that the area (A) of the rectangle is the product of the length and the breadth of the rectangle.
So the area of the rectangle is
A = length $\times$ Breadth.
Now substitute the values we have,
Therefore, A = 28.5 $\times$ 20 = 570 square meter.
So this is the required answer.

Note – Whenever we face such types of questions the key concept we have to remember is that in the rectangle opposite sides are equal so mark the opposite sides of the rectangle then calculate the perimeter of the rectangle by adding all the sides and calculate the area of rectangle by multiplying length and breadth and simplify we will get the required answer.
View Notes
The Perimeter of Rectangle Formula  Perimeter of a Trapezoid Formula  Area of a Rhombus Formula  Area of a Sector of a Circle Formula  To Find the Weight of a Given Body Using Parallelogram Law of Vectors  Area of Trapezium  CBSE Class 8 Maths Chapter 11 - Mensuration Formulas  Surface Area of a Prism Formula  Area of Hollow Cylinder  The Making of a Scientist  Important Questions for CBSE Class 7 Maths Chapter 11 - Perimeter and Area  Important Questions for CBSE Class 6 English A Pact with The Sun Chapter 8 - A Pact with the Sun  CBSE Class 8 Science Stars and The Solar System Worksheets  Important Questions for CBSE Class 6 English A Pact with The Sun Chapter 6 - The Monkey and the Crocodile  CBSE Class 8 Science Reaching The Age of Adolescence Worksheets  Important Questions for CBSE Class 7 Social Science - Social and Political Life Chapter 8 - A Shirt In The Market  Important Questions for CBSE Class 8 Social Science Our Past 3 Chapter 4 - Tribals, Dikus and the Vision of a Golden Age  Important Questions for CBSE Class 8 Science Chapter 17 - Stars and The Solar System  Important Questions for CBSE Class 8 English Honeydew Chapter 1 - The Best Christmas Present in the World  Important Questions for CBSE Class 12 Chemistry Chapter 8 - The d and f Block Elements  CBSE Class 10 Hindi A Question Paper 2020  Hindi A Class 10 CBSE Question Paper 2009  Hindi A Class 10 CBSE Question Paper 2015  Hindi A Class 10 CBSE Question Paper 2007  Hindi A Class 10 CBSE Question Paper 2013  Hindi A Class 10 CBSE Question Paper 2016  Hindi A Class 10 CBSE Question Paper 2012  Hindi A Class 10 CBSE Question Paper 2010  Hindi A Class 10 CBSE Question Paper 2008  Hindi A Class 10 CBSE Question Paper 2014  NCERT Solutions for Class 7 Maths Chapter 11 Perimeter and Area  RS Aggarwal Class 6 Solutions Chapter-21 Concept of Perimeter and Area  NCERT Solutions for Class 7 Maths Chapter 11 Perimeter and Area In Hindi  RS Aggarwal Class 8 Mathematics Solutions for Chapter-18 Area of a Trapezium and a Polygon  RS Aggarwal Class 10 Solutions - Perimeter and Areas of Plane Figures  NCERT Solutions for Class 7 Maths Chapter 11 Perimeter and Area (EX 11.4) Exercise 11.4  NCERT Solutions for Class 7 Maths Chapter 11 Perimeter and Area (EX 11.2) Exercise 11.2  RS Aggarwal Solutions Class 6 Chapter-21 Concept of Perimeter and Area (Ex 21C) Exercise 21.3  NCERT Exemplar for Class 7 Maths Solutions Chapter 9 Perimeter & Area  NCERT Solutions for Class 7 Maths Chapter 11 Perimeter and Area (EX 11.3) Exercise 11.3  