Question

plz tell me this questions answer fast ​

Answer 1

Answer:

hope this answers helps you.....

Answer 2

Answer:

hi here's your answer

Step-by-step explanation:

If D=21m

R=21/2m

Lenght of rope is

4pi R

4x21/2x 22/ 7

=132m

and the cost at the rateRs4 per meter= 4x132

= Rs528/-