Topic: Circle Equation
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Answers to Common Questions
What is the Equation of a Circle?
The equation of a circle is x^2(squared) + y^2 (squared)= r^2(squared). The "r" in this equation stands for the radius of the circle, which is half of the diameter of the circle. Read More »
Source: http://answers.ask.com/Science/Mathematics/what_is_the_equation_o...
How to Find the Equation of a Normal Line to a Circle
A line that is normal to a circle is perpendicular to the circle where the two intersect. Such a line goes through the center of the circle. Therefore, you can develop an equation describing a normal line by using both the point of intersec... Read More »
Source: http://www.ehow.com/how_6122236_equation-normal-line-circle.html
What is the equation for the area of a circle?
pi(r)^2 (pi times the radius of the circle squared) Read More »
Source: http://wiki.answers.com/Q/What_is_the_equation_for_the_area_of_a_...
More Common Questions
Answers to Other Common Questions
perimeter = pi * diameter, or 2 * pi * radius
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Source: http://wiki.answers.com/Q/What_is_the_equation_of_the_perimeter_o...
The formula for the circumference of a circle is: Circumference = πdiameter OR (π)2radius
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Source: http://wiki.answers.com/Q/What_is_equation_for_the_circumference_...
Circles don't have volume, but they do have area.
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Source: http://wiki.answers.com/Q/What_is_the_equation_for_a_volume_of_a_...
Ax 2 +By 2 +Bx+Cy+D=0
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Source: http://wiki.answers.com/Q/What_is_the_general_equation_of_a_circl...
You might think you can't do much with two points plotted on the xy-plane. However, the opposite is true. If you are given that these two points are endpoints of a circle's diameter, you can find the equation of the circle. This article exa...
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Source: http://www.ehow.com/how_4773375_equation-two-endpoints-its-diamet...
2*pi*radius of the circle or diameter*pi where pi = 3.1416 or 22/7 and is usually rounded to 3.14.
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Source: http://wiki.answers.com/Q/What_is_the_equation_for_finding_the_ci...
It's radius x radius x pi.
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Source: http://wiki.answers.com/Q/What_is_the_equation_for_finding_area_i...
