Question

a circular path runs around a circular flower bed. if the inner and the outer radii are 12m and 15m respectively.find the area of the circular path and the cost of maintaining the path at the rate of ₹4/sqm​

Answer 1

Step-by-step explanation:

circumference of path=88$$m

⇒2πr=88

⇒2.

7

22

.r=88

⇒r=14m

circumference of plot=44m

⇒2πr

′

=44

⇒2.

7

22

.r

′

=44

⇒r

′

=7m

therefore width of path=r−r

′

=14−7

=7m