QR is tangent to circle P at point Q. Circle P is shown. Line segment P Q is a radius. Line segment Q R is a tangent that intersects the circle at point Q. A line is drawn from point R to point P and goes through a point on the circle. The length of R Q is 5.3 and the length of Q P is 3. What is the approximate length of RP? Round to the nearest tenth. 5.6 units 6.1 units 8.3 units 9.8 units