Question

Find cost of polishing a circular table on of radius 2.8 m if the rate of polishing is rupees 20 m²​

Answer 1

Step-by-step explanation:

=> Given:

=> Radius = 2.8 m

=> Rate of polishing = ₹20/m²

=> To find:-

=> Cost of polishing a circular table.

Now,

=> Area to be polishing = Area of circular table top.

=> Area of table top = πr²

=> Area of table top = 3.14×2.8×2.8

=> Area of table top = 24.6 m²

=> Cost of polishing 1 m² area = ₹20

=> Cost of polishing 24.6 m² = ₹x

=> Cost of polishing 24.6 m² = 20×24.6

=> Cost of polishing 24.6 m² = ₹492

=> .°. cost of polishing a circular table of radius 2.8m is ₹492

This is your answer..✌️✌️✌️

Answer 2

Answer:

Answer

AnswerGiven diameter of table (circular) =1.6m

AnswerGiven diameter of table (circular) =1.6mradius =0.8m

AnswerGiven diameter of table (circular) =1.6mradius =0.8marea of circle = πr

AnswerGiven diameter of table (circular) =1.6mradius =0.8marea of circle = πr 2

AnswerGiven diameter of table (circular) =1.6mradius =0.8marea of circle = πr 2 =3.14×0.64=2.0096m

AnswerGiven diameter of table (circular) =1.6mradius =0.8marea of circle = πr 2 =3.14×0.64=2.0096m 2

AnswerGiven diameter of table (circular) =1.6mradius =0.8marea of circle = πr 2 =3.14×0.64=2.0096m 2

AnswerGiven diameter of table (circular) =1.6mradius =0.8marea of circle = πr 2 =3.14×0.64=2.0096m 2 Now rate of polishing per meter square =15Rs

AnswerGiven diameter of table (circular) =1.6mradius =0.8marea of circle = πr 2 =3.14×0.64=2.0096m 2 Now rate of polishing per meter square =15RsCost of polishing table top = 15×2.0096

AnswerGiven diameter of table (circular) =1.6mradius =0.8marea of circle = πr 2 =3.14×0.64=2.0096m 2 Now rate of polishing per meter square =15RsCost of polishing table top = 15×2.0096cost = 30.14m

AnswerGiven diameter of table (circular) =1.6mradius =0.8marea of circle = πr 2 =3.14×0.64=2.0096m 2 Now rate of polishing per meter square =15RsCost of polishing table top = 15×2.0096cost = 30.14m 2

AnswerGiven diameter of table (circular) =1.6mradius =0.8marea of circle = πr 2 =3.14×0.64=2.0096m 2 Now rate of polishing per meter square =15RsCost of polishing table top = 15×2.0096cost = 30.14m 2

AnswerGiven diameter of table (circular) =1.6mradius =0.8marea of circle = πr 2 =3.14×0.64=2.0096m 2 Now rate of polishing per meter square =15RsCost of polishing table top = 15×2.0096cost = 30.14m 2 solution