The center of circle o has coordinates (3,-2). If circle passes through R(7,1), what is the length of its diameter?

Question

How do you write the general form given a circle that passes through the given points. P(-2, 0),...
What is the equation of the circle with a center at #(7 ,1 )# and a radius of #2 #?
What is the equation of the circle with a center at #(3 ,1 )# and a radius of #2 #?
What is the equation of the circle with a center at #(3 ,1 )# and a radius of #1 #?
What is the equation of the circle with a center at #(3 ,5 )# and a radius of #1 #?
What is the equation of the circle with a center at #(3 ,5 )# and a radius of #6 #?
What is the equation of the circle with a center at #(2 ,5 )# and a radius of #6 #?
What is the equation of the circle with a center at #(2 ,2 )# and a radius of #4 #?
What is the equation of the circle with a center at #(2 ,2 )# and a radius of #3 #?
What is the equation of the circle with a center at #(2 ,1 )# and a radius of #3 #?

4929 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-12-28T01:32:43

#10#

Given that Circle #O# is centered at (3,-2) and the circle passes through #R(7,1)#,

The distance between #O and R# is the radius #(r)#.

#r=sqrt((7-3)^2+(1-(-2))^2)=sqrt25=5#

diameter #=2*r =2*5=10#