Circle simple

Circumference of a circle is 6.28. What is the area of the circle?

Correct result:

S =  3.138

Solution:


Try another example


Our examples were largely sent or created by pupils and students themselves. Therefore, we would be pleased if you could send us any errors you found, spelling mistakes, or rephasing the example. Thank you!





Please write to us with your comment on the math problem or ask something. Thank you for helping each other - students, teachers, parents, and problem authors.

Showing 0 comments:
avatar




You need to know the following knowledge to solve this word math problem:


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

Next similar math problems:

  • Circle - simple
    kruh The circumference of a circle is 198 mm. How long in mm is its diameter?
  • The diameter
    circles The diameter of a circle is 4 feet. What is the circle's circumference?
  • Diameter
    circular_plot The diameter of a circular plot is 14 dm. Find the circumference and area.
  • Circle
    circle_1 What is the radius of the circle whose perimeter is 6 cm?
  • Bicycle wheel
    cyklo2_2 After driving 157 m bicycle wheel rotates 100 times. What is the radius of the wheel in cm?
  • Velocipede
    velociped The front wheel of velocipede from year 1880 had a diameter 1.8 m. If the front wheel turned again one then rear wheel 6 times. What was the diameter of the rear wheel?
  • Circle - easy 2
    circle_3 The circle has a radius 6 cm. Calculate:
  • Perimeter to area
    circles_1 Calculate the area of a circle with the perimeter 15 meters.
  • Circle area
    circle3 Calculate the circle area with a radius of 1.2 m.
  • Diameter to area
    circle_eq_1 Find the area of a circle whose diameter is 26cm.
  • 22/7 circle
    red_circle Calculate approximately area of a circle with radius 20 cm. When calculating π use 22/7.
  • Cable
    wire Cable consists of 8 strands, each strand consists of 12 wires with diameter d = 0.5 mm. Calculate the cross-section of the cable.
  • Clock hands
    clocks2_16 The second hand has a length of 1.5 cm. How long does the endpoint of this hand travel in one day?
  • Bicycle wheel
    wheel_2 Bicycle wheel diameter is 62 cm. How many times turns the bicycle on the road 1 km long?
  • Well
    well Rope with a bucket is fixed on the shaft with the wheel. The shaft has a diameter 50 cm. How many meters will drop bucket when the wheels turn 15 times?
  • Perimeter of square
    stvorec_1 The square has a circumference 17cm. What is its area?
  • Chauncey
    right_triangle Chauncey is building a storage bench for his son’s playroom. The storage bench will fit into the corner and against two walls to form a triangle. Chanuncy wants to buy a triangular shaped cover for the bench. If the storage bench is 2 1/2 ft. Along one