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center of a circle

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The center and radius of a circle 2020-03-25
Riley pose la question :
so it says find the center and the radius of the below circle
x^2+(y-6)^2=121

i need help learning how to solve this

Penny Nom lui répond.
The center of a circle 2019-10-24
Patrick pose la question :
I'm trying to find a quick calculation to find the center of the circle that will touch the 3 points of an isosceles triangle.
Known dimensions are length of the triangle base and the height from the top point to the middle of the base.
Thanks in advance,
Kind regards,
Patrick

Penny Nom lui répond.
Locating the center of a circle that forms an arc 2015-04-23
Ken pose la question :

Find the Cartesian coordinates of the center of an arc with the given location of the beginning and end points and radius length. Not the midpoint of the circumference but the actual point that the arc
is drawn around.

I know their are two answers depending on the direction of the arc. Unless we assume that all arcs are drawn counter clock wise.

Thanks
Ken


Harley Weston lui répond.
The center and radius of a circle 2015-02-06
ariana pose la question :
I need to find the center and the radius of this circle. I don't know how to put 9/2 than square it into a fraction.

x^2 + 2x + y^2 +9y=5

Penny Nom lui répond.
 
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