Question

A circular ground of diameter 63m is to be trilpe fenced.if the rate of wire is rs 25 per meter what will be the cost of fencing the fround?​

Answer 1

Answer:

Step-by-step explanation:

Solution- diameter of the circular garden= 21 m

radius= 21/2 m

circumference= 2πr

∴ circumference of the circular garden= 2*22/7*21/2 m

                                                               =22*3 m=66 m

since, the rope makes 2 round of fence.

∴length of the rope= 2* (circumference of the garden)

                              = 2*66 m= 132 m

   thus , the length of the required rope =132 m

now,      cost of the rope= rs 4 *132= rs 158

#Pari here...