Question

the radius of a circular garden is 56 m. what would it cost to put a4 round fence around this garden at a rate of 40 rupees per metre?

Answer 1

Hi friend
here's your answer looking for

CIRCUMFERENCE OF CIRCLE =
2\pi \: r \\ \\ = 2 \times \frac{22}{7} \times 56 \\ \\ = 2 \times 22 \times 8 \\ \\ = 44 \times 8 \\ \\ = 352m
now,

cost of one round =

40 \times 352 \\ \\ = rs14080

cost of 4 round =
4 \times 14080 \\ \\ = rs56320
hope you are satisfied with my answer



please please please please mark has brainliest answer

Answer 2

First find the circumference of the circle

2*pie*radius

2*22/7*56

2*22*8

358msq.

now multiply 358 by 40

=14320

at last, multiply 14320 by 4

answer = Rs. 57280

HOPE THIS WOULD HELP YOU !!!