Thursday

October 23, 2014

October 23, 2014

Posted by **HELP PLEASE!** on Wednesday, May 30, 2012 at 1:15am.

a.Find the center of the circle.

b.Find the radius. If your answer is not an integer, express it in radical form.

c.Write an equation for the circle.

- GEOMETRY -
**Reiny**, Wednesday, May 30, 2012 at 7:49amThe centre must be the midpoint of PQ

which would be C( (-10+4)/2 , (-2+6)/2 )

= C(-3,2)

radius is √( (4+3)^2 + (2-6)^2) = √65

equation:

(x+3)^2 + (y-2)^2 = 65

- GEOMETRY -
**anne**, Tuesday, February 4, 2014 at 7:40amLength of the diameter of a circle with the endpoints A(4, -3) and B(4, 3)

**Answer this Question**

**Related Questions**

geometry - This one is confusing me. please help The diameter of a circle has ...

Math - The points (4, –5) and (– 4, 1) are endpoints of a diameter of a circle...

Geometry - In circle O, diameter RS has endpoints R(3a,2b-1) and S(a-6,4b+5). ...

Calculus - Points (–1, 6) and (–3, 2) are endpoints of the diameter of a circle...

geometry - Name the diameter, radius, center, and the equation of the circle ...

Math - Find the center and the radius of the circle which (6,-2) and (-4,4)are ...

geometry - a circle has diameter endpoints of A(5,10) and B(-3,4). what are the ...

Math - The points (4, –5) and (– 4, 1) are endpoints of a diameter of a circle. ...

math - the number of noncollinear points needed to determine a circle Two. The ...

Geometry - How would you solve these? The radius of a circle is 34 meters long, ...