Question

A circular park of radius 12 cm has a road of 4 cm width all around its outside. Find the area of a road​

Answer 1

Step-by-step explanation:

radius of the park(r) = 12 m

perimeter of the park = 2*Pi*r

=2*3.14*12

=75.36 m

wide =4 m

area of the road = perimeter x wide

= 75.36 x 4

= 301.44 square meters

cost per square meter = RS 16

Total cost = 301.44 x16

= RS. 4823.04

Result : Cost = RS .4823.04