Circle - simple
Calculate the area of a circle in dm2 if its circumference is 31.4 cm.
Correct answer:

You need to know the following knowledge to solve this word math problem:
algebraplanimetricsGrade of the word problem
We encourage you to watch this tutorial video on this math problem: video1
Related math problems and questions:
- Circumference of a circle
Calculate the area of a circle if its circumference is 21.98 dm. Express the result in square decimetres.
- Area to perimeter
Calculate the circle circumference if its area is 254.34cm2
- Four circles
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 the perimeter is 400 cm.
- Circumference 61944
Calculate the volume and surface of the planet Venus if its circumference is 12,000 km.
- Circumference 6651
Calculate the circumference of a circle if its area is 706.5 cm²
- Circumference 64994
Calculate the volume of the cylinder if the circumference of the base o = 31.4 cm, height v = 6.4 cm
- Circumference 72984
Task 1 - The circumference of the square is 280 mm. What is its area? Task 2 - the perimeter of the rectangle is 44.6dm, and its width is 6.3dm. Calculate the area of this rectangle.