Question

A gardener wants to fence a circular garden of diameter 28cm. Find the length of the rope he needs to purchase, if he makes 3 rounds of fence. Also find the cost of the rope ,if one meter of rope costs Rs. 12(π = 22/7)​

Answer 1

Step-by-step explanation:

Given : Diameter of circular garden is 28 cm

so radius r = diameter/2 = 28/2 =14cm

circumference = 2πr = 2*22/7 *14=88cm

to make 3 round = 3* circumference

= 3*88

=264 cm

so 264 cm lengthy rope is required to make 3 round

264 cm = 264/100=2.64m

cost of 1 meter of rope is 12

so cost of 2.64 m of rope is is 31.68 rupees