Ncert solutions

Ncert solutions

Grade 7

Perimeter and Area | Exercise 11.4

Question 1

Q1) A garden is 90 m long and 75 m broad. A path 5 m wide is to be built outside and around it. Find the area of the path. Also find the area of the garden in a hectare.

Solution 1:

Length= 90m

Breadth= 75m

Area of the garden= l\times b

=90m+75m=6750m^2

Length of the garden including path

=90m+5m+5m=100m

Breadth of the garden including path

=75m+5m+5m=85m

Area of the garden including path

=l\times b

=100m\times85m=8500m^2

Area of the path= 8500m^2-6750m^2=1750m^2

Hence, the required area of path= 1750m^2 and area of the garden= =6750m^2=0.675

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subject-cta

Question 1

Q1) A garden is 90 m long and 75 m broad. A path 5 m wide is to be built outside and around it. Find the area of the path. Also find the area of the garden in a hectare.

Solution 1:

Length= 90m

Breadth= 75m

Area of the garden= l\times b

=90m+75m=6750m^2

Length of the garden including path

=90m+5m+5m=100m

Breadth of the garden including path

=75m+5m+5m=85m

Area of the garden including path

=l\times b

=100m\times85m=8500m^2

Area of the path= 8500m^2-6750m^2=1750m^2

Hence, the required area of path= 1750m^2 and area of the garden= =6750m^2=0.675

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subject-cta
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