Ask a New Question

Find the centres and radii of the circles given by

A)x2+y2=6x
B)x2+y2-6x+14y+49=0

1 answer

x^2+y^2 = 6x
x^2-6x + y^2 = 0
x^2-6x+9 + y^2 = 9
(x-3)^2 + y^2 = 3^2

x^2+y^2-6x+14y+49 = 0
x^2-6x + y^2+14y+49 = 0
x^2-6x+9 + y^2+14y+49 = 9
(x-3)^2 + (y+7)^2 = 3^2

Ask a New Question or answer this question.

Similar Questions

Two circles of radii 9cm and 13cm have their centres 15cm apart. Find the angle between the radii joining the centres to the
1. 2 answers
Three circles touch one another externally.Their centres form A triangle with sides 10cm,9cm and 7cm.Find the radii of the
1. 1 answer
Three circles touch each other externally. Their centres make a triangle with sides of 11cm, 15cm and 19cm. What are the radii
1. 1 answer
. In the diagram, the five circles have the same radii and touch each other as shown. The square joins the centres of the four
1. 1 answer

more similar questions