Area of a circle

The circumference of the circle is 150.72 centimeters. Calculate the area of the circle.

Correct answer:

S =  1807.7 cm2

Step-by-step explanation:

o=150.72 cm  o=2 πr r=o/(2π)=150.72/(2 3.1416)23.9878 cm  S=π r2=3.1416 23.98782=1807.7 cm2



We will be pleased if You send us any improvements to this math problem. Thank you!



avatar




Tips to related online calculators
Do you want to round the number?

 
We encourage you to watch this tutorial video on this math problem: video1

Related math problems and questions:

  • Area to perimeter
    circle11_3 Calculate circle circumference if its area is 254.34cm2
  • Quarter of a circle
    circle14 Calculate the circumference of a quarter circle if its content is S = 314 cm2.
  • Shape
    some_airplane Plane shape has a maximum area 677 mm2. Calculate its perimeter if perimeter is the smallest possible.
  • Four circles
    circles_2 1) Calculate the circle radius if its area is 400 cm square 2) Calculate the radius of the circle whose circumference is 400 cm. 3) Calculate circle circumference if its area is 400 cm square 4) Calculate the circle's area if perimeter 400 cm.
  • Two annuluses
    medzikruzie_2 The area of the annular circle formed by two circles with a common center is 100 cm2. The radius of the outer circle is equal to twice the radius of the inner circle. Determine the outside circle radius in centimeters.
  • Perimeter of the circle
    squares Calculate the perimeter of the circle in dm, whose radius equals the side of the square containing 0.49 dm2?
  • Circle
    circle How big is an area of a circle if its circumference is 80.6 cm?
  • Perimeter to area
    circles_1 Calculate the area of a circle with a perimeter of 15 meters.
  • Circle and rectangle
    described_circle A rectangle with sides of 11.7 cm and 175 mm is described by circle. What is its length? Calculate the content area of the circle described by this circle.
  • Described
    desc_circle Calculate perimeter of the circle described by a triangle with sides 478, 255, 352.
  • Radius
    green_circle Determine the radius of the circle, if its perimeter and area is the same number.
  • Ratio of sides
    described_circle2 Calculate the area of a circle with the same circumference as the circumference of the rectangle inscribed with a circle with a radius of r 9 cm so that its sides are in ratio 2 to 7.
  • Circle - simple
    colorful-circle Calculate the area of a circle in dm2 if its circumference is 31.4 cm.
  • Equilateral triangle
    equilateral_triangle2_1 Calculate the area of an equilateral triangle with circumference 72cm.
  • Circle - simple
    kruh The circumference of a circle is 198 mm. How long in mm is its diameter?
  • Square s3
    squares_9 Calculate the diagonal of the square, where its area is 0.49 cm square. And also calculate its circumference.
  • The field
    plavec_1 The player crossed the field diagonally and walked the length of 250 m. Calculate the length of the field, circumference if one side of field 25 meters.