NCERT Solutions for Class 7 Mathematics Chapter 11
Important NCERT Questions
Class vii Math Chapter 11 Perimeter and Area Exercise 11.1
NCERT Books for Session 2022-2023
CBSE Board
Questions No: 3
Find the breadth of a rectangular plot of land, if its area is 440 m² and the length is 22 m. Also find its perimeter.
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To find the breadth- divide 440 by 22.
=Breadth=area/lenght.
=Breadth=440/22
=20m is your length.
To find the perimeter=Formula=2[l=b]
=2[20+22]
=2*42
=84m is your perimetre.
Area of rectangular park = 440 m²
⇒ length x breadth = 440 m²
⇒ 22 x breadth = 440
⇒ breadth = 440/20 = 20 m
Now, Perimeter of rectangular park = 2 (length + breadth)
= 2 (22 + 20)
= 2 x 42 = 84 m
Thus, the perimeter of rectangular park is 84 m.
Class 7 Maths Chapter 11 Exercise 11.1
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https://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-11/