Point P is the center of two concentric circles. PQ = 4.2 and PS = 8.2. RS is tangent to the smaller circle and a chord of the larger circle. What is length of RS to the nearest tenth?
Segment PQ is perpendicular to segment RS because a radius drawn to a tangent to a circle is perpendicular to the tangent at the point of tangency. That creates a right triangle and thoughts of the Pythagorean Theorem come to mind
