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Area of a circle = pi*radius squared

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

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Bethel Pfeffer

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3y ago

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When you make the circle smaller which number in the standard equation for a circle centered at the origin decreases?

The radius of the circle decreases when you make the circle smaller.


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 standard equation?

There is no such thing as a standard equation. Furthermore, there are standard forms - all different - for the equation of a line, a circle, a plane, a parabola, an ellipse and so on. the question needs to be more specific.


WRITE THE STANDARD EQUATION FOR THE CIRCLE CENTERED AT THE GROIN WITH THE POINT (8, -1) ON THE CIRCLE?

9


When you make the circle bigger or smaller which number of the standard equation for a circle centered at the origin changes?

Standard equation for a circle centred at the origin is x2 + y2 = r2 where r is the radius of the circle. If you increase the size of the circle then the radius must increase, so r2 will be larger. eg a circle of radius 2 has the equation x2 + y2 = 4, if the radius increases to 3 then the equation becomes x2 + y2 = 9


How To find the standard equation for a circle centered at the origin we use the distance formula since the radius measures?

To find the standard equation for a circle centered at the origin, we use the distance formula to define the radius. The equation is derived from the relationship that the distance from any point ((x, y)) on the circle to the center ((0, 0)) is equal to the radius (r). Thus, the standard equation of the circle is given by (x^2 + y^2 = r^2). Here, (r) is the radius of the circle.


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

9


When you make the circle bigger or smaller which number of thte standard equation for a circle centered at the origin changes?

The Radius


When you make a circle smaller what number in the standard equation for a circle centered at the origin decreases?

In the standard equation for a circle centered at the origin, ( x^2 + y^2 = r^2 ), the radius ( r ) determines the size of the circle. When you make the circle smaller, the radius ( r ) decreases, which in turn causes ( r^2 ) to decrease as well. Thus, the value of ( r^2 ) in the equation decreases when the circle is made smaller.


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


Which is the standard equation for a circle centered at origin with raduis r?

The standard equation for a circle centered at the origin (0, 0) with radius ( r ) is given by ( x^2 + y^2 = r^2 ). In this equation, ( x ) and ( y ) represent the coordinates of any point on the circle, and ( r ) is the radius. This equation describes all points that are a distance ( r ) from the center.


What is the formula for the center of the circle?

The formula for the center of a circle is given by the coordinates ((h, k)) in the standard equation of a circle, which is ((x - h)^2 + (y - k)^2 = r^2). Here, ((h, k)) represents the center of the circle, and (r) is the radius. If the equation is presented in a different form, you can derive the center by rearranging the equation to match the standard form.