Question

A man wants to put a fence around a circular flower bed, the fence used to be madeof 3 rounds of costing rs. 45 per meter. find the cost of the rope if the diameter of the garden is 28m. ​

Answer 1

Answer:

the cost of fencing is 11880

Step-by-step explanation:

first we have to find circumference of circle

pie ×diameter

therefore. 22÷7 ×28

=88 ×3 (three times fencing )

=264×45 (cost of fencing )= 11880

Answer 2

The cost of rope=Rs 11880

Step-by-step explanation:

Diameter of circular bed=d=28 m

Radius of circular bed=$\frac{d}{2}=\frac{28}{2}=14m$

Circumference of circular bed=$2\pi r$

Where $\pi=\frac{22}{7}$

r=Radius of circle

Circumference of circular bed=$2\times \frac{22}{7}\times 14=88m$

Length of fence for 1 round=88m

Length of rope for 3 round=$3\times 88=264m$

Cost of 1 meter of fencing=Rs 45

Cost of 264 m of fencing=$264\times 45=$Rs11880

Hence, the cost of rope=Rs 11880

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