The perimeter of a circle is called the circumference. Its formula is C = pi x diameter. The value of pi is often rounded to 3.14 for problem solving purposes. So just plug in the values for pi and the diameter into the formula to get the circumference of the circle: 3.14 x 600mm = approximately 1884 mm.
Chat with our AI personalities
Its circumference = 600*pi mm
600mm x 600mm is 0.36m2.
Area of a circle = pi x radius squared. The radius of a circle is equal to half the diameter, in this case 600/2 = 300mm. So area = pi x 3002 = 282743 mm2 (nearest mm2)
600mm * 400mm = 0.6m * 0.4m = 0.24 sq metres
600mm is 0.6m, and 450mm is 0.45m, so one flag is 0.27 sq metre. Therefore 4 flags to the square metre