Setting Up the Formula
or “The diameter is equal to twelve divided by 3.14.” Divide the circumference by pi to get the answer. In this case, the diameter would be 3.82 inches.
Also, How do you figure out a diameter?
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).
Hereof, What is the area of a 12 diameter circle?
To find the area of a circle, you need to use the formula A=π⋅r2 ; therefore the area A is π⋅62≈113 square inches.
Also to know What is the length of a 12 inch circle? If the diameter is 12, the 90° arc is (1/4)Π(12), or 3Π (approximately 9.42).
What is the diameter of a 10 circumference circle?
In this example, “d = 12 / 3.14.” or “The diameter is equal to twelve divided by 3.14.” Divide the circumference by pi to get the answer.
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What is the circumference of a 10 inch diameter circle?
Size in Inches  Circumference Inches  Area in Square Inches 

10 1/4 
32.200 
105.060 
10 1/2  32.990  110.250 
10 3/4  33.770  115.560 
11  34.560  121.000 
Mar 29, 2020
Table of Contents
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 
What is the diameter of a circle definition?
In geometry, a diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle. It can also be defined as the longest chord of the circle.
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″ 
What is the area of a 14 diameter circle?
The area of the circle is 154 square feet.
What is the area of a 9 inch circle?
For example, the area of a 9inch round pan is 63. The radius is 4.5. 4.5×4.5 = 20.25. Multiply that by 3.14 = 63.5.
What is the diameter of a 19 inch circle?
What is the area of a circle with diameter 19 inches?
Result: The area of a circle with diameter 19 is 283.5 


Formulae:  
r = 9.5 d = 19 C = 59.7 
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 diameter of a 3 inch circle?
Area and circumferences of circles with diameters in inches
Diameter (in)  Circumference (in) 
Area (in ^{ 2 } ) 

3 1/16  9.62  7.37 
3 1/8  9.82  7.67 
3 3/16 
10.01 
7.98 
3 1/4  10.21  8.30 
What is the circumference of a 9 inch circle?
The circumference of a 9 inch circle is 28.27 inches.
How do you measure a 10 inch circle?
Locate the circle’s center, and measure the length from its center to a point on its edge to find the radius. For an example, suppose the measurement is 5 inches. Double the length to calculate the circle’s diameter. For this example, multiplying the length of 5 inches by 2 results in 10 inches.
What is the circumference in inches of a 10 inch circle?
The circumference of a 10 inch circle is 31.42 inches.
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 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.
What is the calculation for diameter of a circle?
If you know the radius of the circle, double it to get the diameter. The radius is the distance from the center of the circle to its edge. If the radius of the circle is 4 cm, then the diameter of the circle is 4 cm x 2, or 8 cm. If you know the circumference of the circle, divide it by π to get the diameter.
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 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 20cm circle?
Circles (basic)
Diameter  Circumference(approx)  Circumference 

20 cm 
60 cm 
62.8cm 
40 cm  120 cm  125.6cm 
3m  9m  9.42m 
5 cm  15.7 cm  15.7cm 
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.
How do you measure a round table in inches?
A table’s DIAMETER, which is only used for measuring round tables, can be found by measuring across the top of the table (end to end) — from the widest part of the table. The round table pictured above has a diameter of 72 inches.
What is the diameter of a 12 person round table?
Round dining table size for 12. With a diameter of 8 feet (244cm) you can comfortably fit 10 people, or squeeze in 12 with slightly less elbow space, while you would need around 9 feet in diameter (274cm) to spaciously sit 12 people.