Find the equation of the circle of radius $\displaystyle \sqrt{5}$ tangent to the line 2x+y-3=0 and having its center on the line 2x+3y = 4.

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- Nov 28th 2011, 07:53 AMTechnicianEngineeranalytic geometry (circles)
Find the equation of the circle of radius $\displaystyle \sqrt{5}$ tangent to the line 2x+y-3=0 and having its center on the line 2x+3y = 4.

- Nov 28th 2011, 07:58 AMPlatoRe: analytic geometry (circles)
- Nov 28th 2011, 08:09 AMTechnicianEngineerRe: analytic geometry (circles)
how am i supposed to solve the line perpendicular to the tangent line when i have two unknowns (the coordinates at the center and the end of the circle)

- Nov 28th 2011, 08:19 AMPlatoRe: analytic geometry (circles)