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In geometry a diameter of a circle is defined as a straight line which passes through the centre of a circle and whose end points both lie on the circle.
The length of this line can be used to find both the area and circumference of a circle.
C = pi(d)
A = pi(d)2/4
Where:
c = circumference (m)
a = area (m2)
d = diameter (m)
piA = 3.14159265
APi is is a mathematical constant whose value is the ratio of any circle's circumference to its diameter. Shown here to 8 decimal places.
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Pi is the ratio of a circles circumfrance to its what?
diameter ------------- Diameter. The R (radius) of a circle multiplied by two equals the diameter.
Radius is 3 cm what is diameter?
Since with circles the radius is half the diameter, the diameter would be 6 cm.
Do two circles have the same circumference if they have the same diameter?
Yes.
If the diameter of a circle is 8 inches what is the circles radius?
The radius will be half the diameter of 8 inches which is 4 inches
What types of circles are there?
Radius, Diameter, Arc,Seicircle, Circumference and area.
Does a rectangle have diameter?
NO!!! Diameter refer to circles. A rectamgle has a DIAGONAL.
How do you find the diameter of water?
Only circles (or spheres) have a diameter
Do all circles have a diameter?
yes
What is the circles diameter if the circumference is 12.56?
diameter = 12.56/pi
If a circles radius is 2.5cm what is the diameter?
The diameter of a circle is twice the radius.
Is the diameter of a circle always the same?
Every diameter of the same circle is the same length, and unless someone comes alongand stretches the circle when you're not looking, the diameter doesn't change.So...YES-----------I disagree...No they are not... all circles would be the same size if that were the case.What remains a constant is that all circles are 360 degrees.==================================The question doesn't ask about " ... the diameter of circles ... ".It asks about " ... the diameter of a circle ... ".The diameter of circles is not always the same, butthe diameter of any one circle is always the same.P.S.: This is not the place to debate the answer.The "discussion area" is.
What is the circles diameter if the circumference is 31.4?
It is: diameter = 31.4/pi which is about 10 units
How long is a penny?
Circles have a diameter, not length. The diameter of a US cent is 19 mm.
Pi is the ratio of a circles circumfrance to its what?
diameter ------------- Diameter. The R (radius) of a circle multiplied by two equals the diameter.
Radius is 3 cm what is diameter?
Since with circles the radius is half the diameter, the diameter would be 6 cm.
Where is the width and diameter of a rectangle?
A rectangle is an elongated square. It doesn't have a diameter; only circles have diameters.
What is the ratio to any circles circumference to the diameter?
The ratio of the circumference of a circle to its diameter is Pi. (3.14159)
