Calculate the area of a circle whose radius is 5 dm.

Correct result:

S =  78.5398 dm2


r=5 dm S=π r2=3.1416 52=78.5398 dm2

We would be pleased if you find an error in the word problem, spelling mistakes, or inaccuracies and send it to us. Thank you!

Showing 0 comments:

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:

  • Surface and volume
    cylinder_1 Calculate the surface and volume of a cylinder whose height is 8 dm and the radius of the base circle is 2 dm  
  • Parallelogram - side
    rovnobeznik Calculate the length of the side of a parallelogram whose area is 175 dm2 and height to that side is 24.2 dm long.
  • Circle area
    circle3 Calculate the circle area with a radius of 1.2 m.
  • Rhombus HP
    rhombus3_1 Calculate area of the rhombus with height 24 dm and perimeter 12 dm.
  • Circle - easy 2
    circle_3 The circle has a radius 6 cm. Calculate:
  • Annulus
    medzikruzie_1 The radius of the larger circle is 8cm, the radius of smaller is 5cm. Calculate the contents of the annulus.
  • Diameter to area
    circle_eq_1 Find the area of a circle whose diameter is 26cm.
  • Diameter
     circular_plot The diameter of a circular plot is 14 dm. Find the circumference and area.
  • Aquarium
    akvarko_20 Can 30 liters of water fit in a cuboid aquarium with dimensions a = 3dm b = 6dm c = 5dm?
  • Radius of the circle
    circle_axes Calculate the radius of the circle whose length is 107 cm larger than its diameter
  • Area of square
    big-square Calculate the content area of the square whose perimeter is 24 dm.
  • Quadrant II
    quartes_circle Calculate the radius of the quadrant, which area is equal to area of circle with radius r = 15 cm.
  • 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?
  • Octagon from rectangle
    8gon From tablecloth rectangular shape with dimensions of 4 dm and 8 dm we cuts down the corners in the shape of isosceles triangles. It thus formed an octagon with area 26 dm2. How many dm2 we cuts down?
  • Radius
    circle_axes Find the radius of the circle with area S = 200 cm².
  • 22/7 circle
    red_circle Calculate approximately area of a circle with radius 20 cm. When calculating π use 22/7.
  • Square plate
    mriezka From a square metal plate with a side long 6dm were cut two identical rectangular openings with dimensions of 2.5 dm and 2 dm. Calculate the remainder of the square plate.