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idk i hate math and find no need for circles or any type of shape for that fact
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What is the perimeter of a circle with the radius of 7cm and diameter of 14cm?
The perimeter of a circle is equal to pi times the diameter, so for a circle with a diameter of 14 cm, multiply by pi, which is approximately 3.14, and you get 43.96 cm, which for most purposes you could round off to 44 cm.
How do you find the circumfence of a circle?
The circumference is Pi x diameter. Pi is a constant that is often rounded off to 3.14.
What is the formula for area of the circle?
The formula for area of a circle is TTr2.This means that we multiply 3.14(the rounded off nunber for pi) by the radius and radius(3.14xradiusxradius).If the diameter is given,divide it by 2 to get the radius.
One cent is equal to how many square feet?
You need to measure the diameter of the cent. Then divide the diameter in half to get the radius. The formula for area of a circle = ?r2, where ? is 3.14159. I think you would be better off using millimeters or centimeters instead of ft.
What is the circumference of a circle?
The circumference is the distance around the circle, its "perimeter."The circumference of a circle is equal to π times the diameter of the circle (C = πd), or π times twice the radius of the circle (C = 2πr).The circumference is the distance around itIf you know the diameter (width) of the circle, you can use the formulaCircumference= Diameter x pi (approx 3.1416)Example : if a circle has a diameter of 5 cm then the circumference is 5 x π =5π (about 15.7 cm)The actual formula relates to the radius of the circle, which is half the diameter.Radius Formula : C = 2πr (2 pi times the radius)As long you remember the formula you should be fine....Circumference = 2 * pi * rOr pi * dwhere r = radius & d = diameter of the circle.Also pi (=3.143) can be roughly put down as 22/7 if you more comfy with fractions than the decimals.the equation is 2*pi*rr being the radius
What arc of a circle cut off by a diameter?
It is called a semicircle.
What is the line that cross a circle but not a diameter called?
I believe that is called a chord. Yes, a chord is the straight line segment that crosses a circle, from one side of the circle to the other. The biggest possible chord is the diameter. The curved part of the circle, cut off by the chord [or chords], is the arc or the angle.
What is a diameter of a circle made up off?
The diameter of a circle is twice its radius and spans the circle passing through its centre.
What is the perimeter of a circle with the radius of 7cm and diameter of 14cm?
The perimeter of a circle is equal to pi times the diameter, so for a circle with a diameter of 14 cm, multiply by pi, which is approximately 3.14, and you get 43.96 cm, which for most purposes you could round off to 44 cm.
What is part of the circumference of a circle cut off by 2 radii?
The arc.
A 30o angle cuts off an arc in a circle with a diameter of 10 in?
Type your answer here... 5.23
Is all cords diameters in a circle?
No. You can cut a piece off of a circle in millions of ways without cutting it in half.
What is the distance around the outside of the circle of water in terms of pi?
First off, what you appear to be asking for is the circumference, the length of area around a circle(or in this case, a body of water). To find the circumference, measure for the diameter, the diameter is the length of one side of a circle to another, this distance must go through the center of the circle. All you have to do is multyply the Diameter by pi.
How do you work out the perimiter of a circle?
The perimeter of a circle is called it circumference, "C". To calculate it, multiply its diameter by the constant, pi. Pi is roughly equal to 3.14159265. So, let's say you have a circle with a 10-foot diameter. Then C=10 x 3.14159265 = 31.42 (rounded off).
How do you find the circumfence of a circle?
The circumference is Pi x diameter. Pi is a constant that is often rounded off to 3.14.
Is diameter always a chord?
Well, a diameter in a circle is a line that is symmetrical and runs through the center. A chord DOES NOT run through the center of any cirlcle. So, in all usual senses NO. A chord always sections off a "corner" of a circle. my opinion is no because a chord always sections of a circle.
How do you make a dome for a 21 diameter cylinder?
You cut an ellipsoid with a plane perpendicular to one of its axes at a position where the cross section is a 21 unit circle. Either section will make a dome - one will taper off while the other will bulge before it tapers.
