Multiply the known diameter by the value of PI - and you'll have your answer !
The circumference of a six-inch diameter circle is: 18.8 inches.
The circumference of a 10-inch diameter circle is: 31.4 inches.
If a circle has a diameter of 14, the circumference is: 43.98.
Well now, that depends. What do you mean when you say "a 44 inch circle" ? -- If "44 inches" is the distance across the fattest part of the circle, then its diameter is 44 inches. -- If "44 inches" is the distance from the center of the circle out to the edge, then the diameter is 88 inches. -- If "44 inches" is the distance all the way around the circle, then the diameter is 44/pi = 14 inches (rounded)
Assuming that the 14 inch box is square, you could fit a circle inside with a 14 inch diameter.
Multiply the known diameter by the value of PI - and you'll have your answer !
It depends on what you mean by a "7-inch circle". If, as is normally the case, it is a circle with a 7-inch diameter, then you've got your answer in the question. If, unusually, you mean a circle with a 7-inch radius, then the diameter is twice that - 14 inches. If, even more unusually, you mean a circle with a circumference of 7 inches, then the diameter is 7/pi = 2.228 inches.
A circle with a 14 inch diameter has an area of 153.9 sq inches.
The radius is half of the diameter. So, if the radius is 7 the diameter is 14.
A circle with a 12 inch diameter has a 6 inch radius.
The circumference of a six-inch diameter circle is: 18.8 inches.
The circumference of 9 inch diameter circle is about 28.27 inches.
The circumference of a circle with a 20.5 inch diameter is 64.4 inches.
The circumference of a circle with a 39 inch diameter is 122.52 inches.
The Diameter of a Circle is twice the Radius.thus for a 52 inch Diameter Circle the Radius will be 52/2=26 inches.
The circumference of a 10-inch diameter circle is: 31.4 inches.