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Area = pi R2
Circumference = 2 pi R
Area/Circumference = pi R2/2pi R = 1/2 R
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How do you find ratio of a circumference?
The answer depends on what the ratio is relative to!The ratio of a circumference to the area of a circle is half the radius.
How do you find the area of a cylinder using it's circumference?
Take the circumference and multiply it by it's height to get the lateral surface area.
How do you find the radius of a circle using an equation?
What do you have? The area of the circle or the circumference? Area: divide the area by pi, then square root it Circumference: divide the circumference by 2 then divide it by pi
How do you find the area of a circle using its circumference?
Divide the circumference by 2pi(3.14). That will give you the radius.Square the radius and multiply by piThat will give you the area.Calculate the radius by dividing the circumference by 2pi. Then square the radius and multiply by pi to get the area.
How do you find area and perimeter of a circle?
The area of a circle is described by the equations: A=πr2 and the perimeter of a circle is described by the equation: C=πd where: A is the Area C is the circumference, or perimeter r is the radius d=diameter=2r π= pi, the ratio of diameter to circumference (3.14159)
How do you find ratio of a circumference?
The answer depends on what the ratio is relative to!The ratio of a circumference to the area of a circle is half the radius.
Find the ratio of the circumference of 4Cm?
The ratio of the circumference of a circle with radius 4 cm to its area is 1:2.
How do you calculate circumference and area of pi?
Pi is the number of times the diameter of a circle will fit into the circumference. Pi is not a circle, and does not have a circumference or area. To calculate a circumference USING pi, the circumference is diameter * pi. To find the area using pi, area = pi * radius * radius
How do you find the area of a cylinder using it's circumference?
Take the circumference and multiply it by it's height to get the lateral surface area.
Was pi made by accident?
Nope. The Ancient Greeks were trying to find the ratio of circumference to area.
How do you find the radius of a circle using an equation?
What do you have? The area of the circle or the circumference? Area: divide the area by pi, then square root it Circumference: divide the circumference by 2 then divide it by pi
How do you find the area of a circle when the radius is unknown?
By using the other information supplied about the circle to calculate either its radius (from which its area can be calculated) or its area (if the circle is similar to another with a given area and some ratio between the two circle is given):If the diameter is given: radius = diameter ÷ 2If the circumference is given: radius = circumference ÷ 2πIf the circle is similar to another circle which has a given area, and the length ratio is given; square the length ratio to get the area ratio and apply to the given area.
How do you find the area of a circle using circumference?
Circumference = 2*radius Area = 2*pi*radius2 Area = 2*pi*(circumference/2)2
What is the area of a circle in terms of its circumference?
Using the circumference, you would find the radius first. The circumference C = 2*Pi*r where r is the radius. Then, the area of the circle = Pi*r^2.
Area of a Circle using Function in C?
To find the area of a circle using the circumference, you need to use the formula Area=Circumference squared divided by four times pi. For this type of equation, pi would be equal to 3.14.
How do you find the circumference and area of a circle by using pi as a fraction?
I'm not quite sure what you are allowed to use here. If a diameter is given, then circumference = pi x diameter, or equivalently 2 x pi x radius. And the area is pi x r^2, where r is the radius But something tells me that's not what you meant. Some other possibilities for your question: 1. area/circumference = r/2 2. circumference/area = 2/r 3. Ratios are fractions, and pi is a ratio between the circumference of a circle and its diameter.
How do you find the area of a circle using its circumference?
Divide the circumference by 2pi(3.14). That will give you the radius.Square the radius and multiply by piThat will give you the area.Calculate the radius by dividing the circumference by 2pi. Then square the radius and multiply by pi to get the area.
