Question

a gardener needs to fence a circular garden of radius 49m.find the length of fencing material required.​

Answer 1

Answer:

He will need total material of 98m

Answer 2

Solution

verified

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Diameter of the circular garden=21m

∴ Radius of the circular garden=  

2

21

​

m

Now, circumference of circular garden=2πr=2×  

7

22

​

×  

2

21

​

 

=22×3=66m

The gardener makes 2 rounds of fence so the total length of the rope of fencing =2×2πr=2×66=132m

Since the cost of 1 meter rope=Rs. 4

Therefore, cost of 132 meter rope=4× 132=Rs. 528.

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