Question

a path of 7m wide runs around a circular path whose radius is 18cm find the area of path

Answer 1

We have radius of circular park = 84/2 m

= 42 m

area of circular park (A) = 22 / 7 × 42 ^ 2 m^2

= 5544 / 7 m^2

radius of circle including the path and circular park = 42 + 8 m

= 50 m

area of the circle (a) = 22/7 × 50 ^ 2 m^2

= 55000 / 7 m^2

therefore area of the path

= a - A

= 5544 / 7 - 55000 / 7 m^2

= (5544 - 55000) / 7 m^2

= 2313.14286 m^2

I hope this will help you

Answer 2

area of path = πr2 h
=22/7×18×18×700
=22×18×18×100
=22×324×100
=7128×100
= 712800cm


hope this is helpful to us.