There are three ways a line and a circle can be associated, ie the line cuts the circle at two distinct points, the line is a tangent to the circle or the line misses the circle. To work out which ...

Two intersecting lines are tangent to two circles and form an angle of 74°. The circles have area ratios of 36 to 25. The distance from the point of tangency on the large circle to the point of ...

As a tangent is a straight line it is described by an equation in the form \(y - b = m(x - a)\). You need both a point and the gradient to find its equation. You are usually given the point - it's ...