the diameter of a roller 100cm long is 63 cm . if it takes 400 complete revolution tolevel a playground then determine the cost of leveling the playgroud in 30 paise per m sq . pls don't fake out answers and pls tell the explanation
Answers
Answered by
2
Answer:
here's ur answer mate..hope it's helpful :))
Attachments:
Answered by
0
The total cost is 23760 paise.
- The border or entire arc length of a circle's perimeter is known as its perimeter. A circle's circumference is the term used to describe its edge. Therefore, since the perimeter of a circle provides information on its circumference, the formula is also referred to as the circumference of a circle.
- The radius of the circle serves as one of the three variables in the perimeter of a circle formula, along with two constants.
Here, according to the given information, we are given that,
The diameter of a roller 100cm long is 63 cm.
Now, circumference of the roller is given by, , where d is the diameter of the given roller.
Then, circumference of the roller =
Now, when the roller revolves once, it covers a total area of
Now, 19792 cm² =
Then, for 400 revolutions, we get, area = .
1 m sq. costs Rs. 30 paise.
Then, 792 m sq. will cost, paise.
Hence, the total cost is 23760 paise.
Learn more here
https://brainly.in/question/48398242
#SPJ2
Similar questions