Math, asked by radhikaprem5255, 9 months ago

Find the cost of plastering the curved
surface of a well 8 m deep and 21 min
diameter at the rate of 20 per m2

Answers

Answered by invertedirfan

7

Answer:

Step-by-step explanation:height 8cm

d=21

cost 20 per m sq

csa = 2 $\pi$ rh

2*22÷7×21÷2×8

528m²

cost=20 per m²

so total cost=528×20=10560

Answered by sanjaysaini1430

6

step by step explanation

hope it's help you

Attachments:

Previous Question

Next Question

Similar questions

Computer Science, 4 months ago

2 Name the computers most suited for these tasks (i) Complex scientific research (ii) Weather forecasting (iii) Playing games (iv) Domestic needs like document preparation (v) Document and presentation creation on the go $class 6$ ...

Math, 4 months ago

if co-interior angles are in the ratio 1:3,the measuresof angles are...

English, 4 months ago

change into negative . she likes me ...

French, 9 months ago

D.TO Écoutez le dialogue et dites vrai ou faux. 1. La femme va à l'épicerie. 2. Elle achète une baguette. 3. Elle achète deux pains au chocolat. 4. Elle donne 8 euros à la boulangerie. 5. Elle achète 4 sucettes.

Science, 9 months ago

please. if you know then answer.

Environmental Sciences, 11 months ago

what do you mean by Paralympics? what do you mean by deaflympics ?

Physics, 11 months ago

give one example to illustrate that heat can be generated from the energy of motion small example...

Math, 11 months ago

The height of cone is 16cm and the diameter of its base is 24cm.Find it's curved surface area and total surface area and total surface (=3.14).