Question

A circular path of 3.5 m width runs around a
circular garden. If the circumference of the garden
is 132 m,
(i) find the area of the path.
(ii) find the cost of spreading red sand stones on
the path at the rate of Rs 12 per m²​

Answer 1

Step-by-step explanation:

A circular path of 3.5 m width runs around a

circular garden. If the circumference of the garden

is 132 m,

find the cost of spreading red sand stones on

the path at the rate of Rs 12 per m²

Answer 2

The radius of a circular path of garden is 60 metres. A circular path of width 3.5 metres is laid around and outside the garden. Find its area.

Solution:

We have given that,

r = 60 m and width of the path = 3.5 m.

So, the radius of the outer ring = 60 + 3.5

= 63.5 m.

Hence the area of the path = p (R+r)(R-r)

= 22/7 * (63.5 + 60)(3.5)

= 22/7 * 123.5 * 3.5

= 1358.5 sq m.