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well you would times that by: R2=D*3.14(pie)=C

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Q: What is the equation of a circle in standard form if the radius is 3?
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How do you write an equation in standard form of a circle with a center and radius?

The standard equation of a circle, with center in (a,b) and radius r, is: (x-a)2 + (y-b)2 = r2


What is the equation of the circle standard form?

Area of a circle = pi*radius squared Circumference of a circle = 2*pi*radius or diameter*pi


How do you Writing the Equation of a Circle in Standard Form?

(x - A)2 + (y - B)2 = R2 The center of the circle is the point (A, B) . The circle's radius is ' R '.


How is the Pythagorean theorem used to develop the equation of a circle in standard form?

The Pythagorean theorem is used to develop the equation of the circle. This is because a triangle can be drawn with the radius and any other adjacent line in the circle.


What is the standard form of the equation of a circle with center (2 3) and radius 4 units?

(x-2)^2 +(y-3)^2 = 16


What is h in the standard form equation of a circle if the center is at h v and the radius is r?

(x - h)2 + (y - v)2 = r2


What is the radius for a circle with the equation that equals twenty five?

The answer is indeterminate. For example, if the equation is of the form x2 - 2ax + y2 - 2by = 25, all that can be said of the radius of the circle is that it is greater than 5.


What does each variable represent in standard form?

There are different standard forms for different things. There is a standard form for scientific notation. There is a standard form for the equation of a line, circle, ellipse, hyperbola and so on.


How do you find the center and radius with an equation not in standard form?

By using Cartesian equations for circles on the Cartesian plane


What is the standard form of an equation where the poin 3-6 is on a circle whose orgin is the center?

9


How do you find the general form equation of a circle?

There are probably several ways to approach it; one general equation for the circle is: (x - a)2 + (y - b)2 = r2 This describes a circle with center at coordinates (a, b), and with a radius of r.


What is the equation of a circle with center 5 and 3 and radius 7?

The equation of a circle can be written in the form (x-h)2 + (y - k)2 = r2, where r is the radius, and (h,k) is the center. So for your example, the equation would be: (x- 5)2 + (y - 3)2 = 72