x2 + y2 = 9
x2 + y2= 16
x2 + y2 = 36
17
The Radius
(x + 2)2 + (y - 5)2 = 4
Since there are no equations following, the answer must be "none of them".
x2+y2=7^2newtest3
x2 + y2 = 25radius of 10?x2 + y2 = 100
x^2 + y^2 = 100
x2 + y2 = r2
It's important to know the formulas for all these characteristics of circles, and to recognize what they have in common. Area of a circle = πr2 Circumference of a circle = 2πr or dπ Where in the above equations r represents radius, and d is diameter (2r). Both these equations have r in them. Find the radius using the circumference equation, and then plug it into the equation for Area
If that bothers you, then it's easy to arrange it so that they don't.The standard equation for the circle centered at (A, B) is(x - A)2 + (y - B)2 = R2OK. So if the circle is centered at the origin, then 'A' and 'B' are zero.(x - 0)2 + (y - 0)2 = R2That has just as many terms as any other circle, but most peoplesimply don't bother writing all the zeros for this one. That's allthere is to the mystery.
The circumference of a circle represents its perimeter and the distance around it.
The equation of a circle centered at the origin is x2 + y2 = r2; in this case, x2 + y2 = 64.The equation of a circle centered at the origin is x2 + y2 = r2; in this case, x2 + y2 = 64.The equation of a circle centered at the origin is x2 + y2 = r2; in this case, x2 + y2 = 64.The equation of a circle centered at the origin is x2 + y2 = r2; in this case, x2 + y2 = 64.
You should increase the radius in the standard equation of a circle centered at the origin. The general form is ( x^2 + y^2 = r^2 ), where ( r ) is the radius. By increasing ( r ), you extend the distance from the center to any point on the circle, making it larger.
It represents a child.
Linear equations or inequalities describe points x y that lie on a circle.