Question

How do you derive the center and radius of a circle?

Answer 1

u divide it

Answer 2

hope this answers ur question

Answer 3

do you mean how do you find the radius and center from its equation?

Answer 4

i think that is what she means

Answer 5

but u divide that right

Answer 6

no - theres more to it than that

Answer 7

but did i get that part right

Answer 8

theres more to it but yes im sorry from its equation @welshfella

Answer 9

@Michele_Laino do you think you could help me?

Answer 10

if the equation is of the form

(x - f)^2 + (y - g)^2 = r^2

then the center is (f,g) and the radius = r

Answer 11

However if the equation is written as
x^2 + y^2 + ax + bx + c = 0
then you have to complete the square on the terms in x and in y in order to convert the equation to the one in the previous post.

Answer 12

thank you (:

Answer 13

yw