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Re: PS - (AG) Radius of a circle [#permalink]
30 Nov 2005, 22:15

gamjatang wrote:

In a X-Y coordinate, two points on a circle are (4, 0) and (-4, 0). What is the maximum radius of this circle?

(Answer choices not available for this question)

minimum or maximum??!
since the two points lie on the circle , the circle's centre must lie on the median ( hik, dunno correct name..i mean the line which is perpendicular to the line formed by the two points, so called line l, at the middle point of line l ) ...This centre can move infinitely along the the perpendicular line ....i doubt if the question asks for minimum radius.

Re: PS - (AG) Radius of a circle [#permalink]
30 Nov 2005, 22:18

laxieqv wrote:

gamjatang wrote:

In a X-Y coordinate, two points on a circle are (4, 0) and (-4, 0). What is the maximum radius of this circle?

(Answer choices not available for this question)

minimum or maximum??! since the two points lie on the circle , the circle's centre must lie on the median ( hik, dunno correct name..i mean the line which is perpendicular to the line formed by the two points, so called line l, at the middle point of line l ) ...This centre can move infinitely along the the perpendicular line ....i doubt if the question asks for minimum radius.

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