If you are given the area of a circle, the diameter is equal to the square root of four times the area divided by pi (diameter = √ (4 x area) / pi).
Also, Is the diameter half the circumference?
The distance around a rectangle or a square is as you might remember called the perimeter. The distance around a circle on the other hand is called the circumference (c). Half of the diameter, or the distance from the midpoint to the circle border, is called the radius of the circle (r).
Hereof, What is the circumference if the diameter is 14cm?
Diameter = 14cm. So radius = 14/2 cm = 7cm. Circumference = 2 pi r. So, circumference = 2 × 7 × 22/7 = 44cm.
Also to know What is the diameter of a round table? How to Pick a Table
Type of Table  Height  Length 

Dining, round 
28″30″ 
(40″ min. diameter) 
End  18″24″  24″28″ 
Hallway/entry  34″36″  36″72″ 
Night  16″25″  18″28″ 
How many inches are in a diameter?
If you know either of these measurements, you can calculate the diameter. Divide the circumference by pi, approximately 3.14, to calculate the diameter of the circle. For example, if the circumference equals 56.52 inches, divide 56.52 by 3.14 to get a diameter of 18 inches.
Table of Contents
How much bigger is circumference than diameter?
We use this because it is easy to measure the diameter of a circle. It’s not really tricky. The diameter is ALWAYS approximately 3 times smaller than the circumference! Or to put it another way, the circumference is approximately 3 times bigger than the diameter.
What is equal to half the diameter of a circle?
The center of a circle is the midpoint of its diameter. That is, it divides it into two equal parts, each of which is a radius of the circle. The radius is half the diameter.
What is the diameter of a 23 inch circle?
Diameter of a Circle
Diameter 
in ^{ 2 } 
ft ^{ 2 } 

23.0 in 
415.5 
2.885 
23.1 in  419.1  2.910 
23.2 in  422.7  2.936 
23.3 in  426.4  2.961 
What is the diameter 14cm?
What is the area of a circle with diameter 14 cm?
Result: The area of a circle with diameter 14 is 153.9 


Formulae:  
r = 7 d = 14 C = 44 
A = πr ^{ 2 } = π(d2) ^{ 2 } A = C ^{ 2 } 4π π = 3.1415 A = area C = circumference or perimeter r = radius, d = diameter 
What is the circumference of a circle of diameter 10 cm Class 7?
So, the circumference of the circle of diameter 10 cm is 31.4 cm.
What is the circumference of 14 inches?
The circumference of a 14 inch circle is 43.98 inches.
What is the circumference of a 48 inch diameter circle?
Diameter of a Circle
Diameter  in  cm 

48.2 in  151.4 
384.6 
48.3 in  151.7  385.4 
48.4 in  152.1  386.2 
48.5 in  152.4  387.0 
What is the diameter of a 6ft round table?
What big is a circular table for 6 people? Round tables for six people should have an overall table diameter between 4′4’6”  122137 cm.
What is the diameter of a 4 foot round table?
4Foot (48Inch) Diameter Heavy Duty Round Solid Birch Wood Folding Table with 30Inch Height and Aluminum Edge for Weddings, Parties, Events, and Classrooms.
What is the circumference of 3 ft diameter?
Diameter of a Circle
Diameter  ft  in 

3′0″  9.425  113.1 
3′1″  9.687  116.2 
3′2″  9.948  119.4 
3′3″ 
10.21 
122.5 
What is the circumference of a 4 inch diameter?
Circumference & Areas
Size in Inches  Circumference Inches  Area in Square Inches 

4 
12.570 
16.000 
4 1/4  13.350  18.060 
4 1/2  14.140  20.250 
4 3/4  14.920  22.560 
What is the diameter of a 9 inch circumference?
Use 3.14 as an approximation for . Since you are using an approximation for , you cannot give an exact measurement of the circumference. Instead, you use the symbol to indicate “approximately equal to.” The circumference is 9 or approximately 28.26 inches.
What is the diameter of a 6 cm circumference circle?
If r = 6 cm, the the circumference is c = 2π(6) = 12π cm, if writing in terms of π. If you prefer a numerical value, the answer rounded to the nearest tenth is 37.7 cm. Suppose you only know the diameter?
What is the diameter of a 6 foot circumference?
Diameter of a Circle
Diameter  ft  in 

6′0″ 
18.85 
226.2 
6′1″  19.11  229.3 
6′2″  19.37  232.5 
6′3″  19.63  235.6 
What is the circumference of a 2 cm diameter circle?
The circumference of a circle is equal to Pi π times the diameter d . Since the diameter d is equal to 2 times the radius r , the formula for circumference using radius is 2πr 2 π r .
What is the formula for calculating the diameter of a circle?
Diameter of a Circle Using Radius
Radius is the length of the line segment from the center of the circle to an endpoint on the circle and diameter is twice the length of the radius of the circle. Using this definition, the formula for the diameter is: D = Radius × 2.
What best describes the diameter of a circle?
Which best describes the diameter of a circle? The distance across the middle of the circle.
What is the diameter symbol called?
The diameter symbol (⌀) (Unicode character U+2300) is similar to the lowercase letter ø, and in some typefaces it even uses the same glyph, although in many others the glyphs are subtly distinguishable (normally, the diameter symbol uses an exact circle and the letter o is somewhat stylized).
What’s the diameter of a 20 inch circle?
What is the circumference of a 20 inch diameter circle?
Diameter  Circumference 

20 
62.83 
20.01 
62.86 
20.02  62.89 
20.03  62.93 
What is the circumference of a 6 inch diameter circle?
The diameter of the circle is 6 inches. We can substitute this given information into our formula and solve for the circumference of the circle. Our answer is 18.84 inches.
What is the diameter of a 70mm circle?
What is the area of a circle with diameter 70 mm?
Result: The area of a circle with diameter 70 is 3848 


Formulae:  
r = 35 d = 70 C = 220 
A = πr ^{ 2 } = π(d2) ^{ 2 } A = C ^{ 2 } 4π π = 3.1415 A = area C = circumference or perimeter r = radius, d = diameter 