Circles A and B have the following equations #(x -4 )^2+(y -8 )^2= 25 # and #(x -2 )^2+(y -7 )^2= 49 #. What is the greatest possible distance between a point on circle A and another point on circle B?
1 Answer
Aug 23, 2016
12+
Explanation:
The general equation of a circle is
Where the centre of the circle is(a,b) and the radius is r
The distance between the centres of the circles (4,8) and (2,7)
is
The radii of the circles are 5 and 7 hence the greatest possible distance.