Question

There is a circular path of width 2m along the boundary and inside a circular park of radius 16m. Find the cost of paving with bricks at he rate of rupees 24 per m². [Use π=3.14]​

Answer 1

Answer:

4521.6 rupees

Step-by-step explanation:

$\pi r^{2}$

Note that the circular path is between the outside circle and the inside circle.

Area of outside circle:

$(3.14)16^2$ = 803.84

Area of inside circle:

$(3.14)14^2$ = 615.44

Subtract them to get the area of the path:

803.84 - 615.44 = 188.4 $m^{2}$

Multiply by 24 (rupees)

188.4 x 24 =  4521.6 rupees

Answer 2

Refer the above picture.