Answer:
To calculate the diameter of a circle, multiply the radius by 2. If you don't have the radius, divide the circumference of the circle by π to get the diameter. If you don't have the radius or the circumference, divide the area of the circle by π and then find that number's square root to get the radius.
Secondly, what is the circumference of a 20 foot diameter circle? Circumference = 62.857 ft.
Answer: the circumference of the circle having 20 ft. diameter is 62.857 ft.
Also, what is the diameter of a 10cm circle?
Diameter is the longest line that you can draw in a circle passing through the Centre of the circle. Radius is the line joining the centre of the circle to any point on the circumference.
Answer: the radius of 10 cm diameter circle is 5 cm.
What is the circumference of a 12 inch diameter circle?
Circumference & Areas
Size in Inches Circumference Inches Area in Square Inches
12 37.700 144.000
12 1/4 38.480 150.060
12 1/2 39.270 156.250
12 3/4 40.060 162.560
HOPE IT HELPS :)
