Question

circular garden whose diameter is 28 m needs to be fenced. what would be length of fencing wire required if gardener makes 3 rounds of fence. also, find cost of wire if it costs rupees 30 per metre​

Answer 1

Answer:

264m length wire and cost of fencing rupees 7920

Step-by-step explanation:

circumference of garden = 2*22/7*28/2= 88m

as gardener makes round of 3 = 88*3

= 264 m so cost of fencing = 264*30

=rupees 7920

Answer 2

Answer:

Step-by-step explanation:

For fencing one round = perimeter of circle = 2πr

Diameter = 28 m

So radius = 1/2 of diameter

                ⇒ 1/2 × 28 m

                ⇒ 14 m

Perimeter = 2 × 22/7 × 14

                ⇒ 2 × 22 × 2

                 ⇒ 44 × 2

     perimeter ⇒ 88 m

So for fencing one round = 88 m

For fencing three rounds = 88 × 3

                                           ⇒ 264 m

Cost of fencing for 1 metre = 30 rupees

For fencing 264 metre = 30 × 264

                                       ⇒ 7920 rupees

Hope this will help you