Question

the cost of fencing a circular field at the rate of Rs 12. per metre is Rs 2640 . find the radius of the field ​

Answer 1

Answer:

Here is your answer.

Explanation:

HOPE IT HELP'S.............

Answer 2

$\sf\huge\bold\pink{Answer:}$

Given:

Cost of fencing whole field = Rs2640

Cost of fencing per metre = Rs 12

To Find:

Radius of field

Soln.:

Circumference=

$\frac{2640}{12} = 220$

$2\pi \: r = 220 \\ 2 \times \frac{22}{7} \times r = 220$

$r = \frac{220 \times 7}{22 \times 2} = 35$

so,

$\fbox{radius is 35m}$