Question

the perimeter of a square pieces of land is 64m.Find the cost of laying a lawn on the land at the rate of rs 5 per sq m​

Answer 1

Step-by-step explanation:

Given:-

The perimeter of a square pieces of land is 64m.

To find:-

Find the cost of laying a lawn on the land at the rate of rs 5 per sq .m

Solution:-

Given that

Perimeter of a square pieces of land = 64 m

We know that

Perimeter of a square whose side is 'a' units

=4a units

=> 4a = 64

=> a = 64/4

=> a = 16 m

Side of the given square land = 16 m

And we know that

Area of a square = a^2 sq.units

Now, Area of the given square land

=>16^2 sq.m

=> 256 sq.m

Area of the given square land = 256 sq.m

The cost of laying a lawn on the land of 1 sq.m = Rs. 5

The total cost of laying a lawn on the total land of 256 sq.m

=> 256×5

=>Rs. 1280

Total cost = Rs. 1280

Answer:-

The total cost of laying a lawn for the given problem is Rs. 1280.

Used formulae:-

• Perimeter of a square whose side is 'a' units
• =4a units
• Area of a square = a^2 sq.units

Answer 2

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