Question

Find the cost of polishing a circular table top of Diameter 1.6cm, if the rate of polishing is Rs 15/m2. (take =3.14​

Answer 1

Diameter=1.6cm

Radius=0.8cm

Area of the circular top=πr^2

=3.14X0.8X0.8

=2.0096sq.m.

polishing cost= 2.0096X15

=Rs. 30.144

Answer 2

Answer:

Diameter = 1.6cm

Diameter = 1.6cmRadius =0.8cm

Diameter = 1.6cmRadius =0.8cmArea of the circular top= pi r square

Diameter = 1.6cmRadius =0.8cmArea of the circular top= pi r square= 3.14×0.8×0.8

Diameter = 1.6cmRadius =0.8cmArea of the circular top= pi r square= 3.14×0.8×0.82.0096sq.m

Diameter = 1.6cmRadius =0.8cmArea of the circular top= pi r square= 3.14×0.8×0.82.0096sq.mpolishing cost= 2.0096×15

Diameter = 1.6cmRadius =0.8cmArea of the circular top= pi r square= 3.14×0.8×0.82.0096sq.mpolishing cost= 2.0096×15=Rs 30.114..

hope this helps....