Recent content by ginger

Re: tangent lines and circle I figured out another way to do it. I found the angle between the two lines using tan(A - B) = (tan A - tan B)/(1 + tan A tan B) So, using the slopes of the tangent lines, the angle between the lines is the inverse tangent of (3 - .5)/(1 +3(.5)), which gives an...

I'm having some difficulty with this problem and any help would be appreciated. What is the radius of a circle tangent to the lines y = 3x + 7 and y = .5x - 3 and containing the point (8,1)? I've determined that the given point (8,1) is the point of tangency of the line y = .5x - 3 and the...