In the figure, is tangent to the circle at point U. Use the figure to answer the question. Hint: See Lesson 3.09: Tangents to Circles 2 > Learn > A Closer Look: Describe Secant and Tangent Segment Relationships > Slide 4 of 8. 4 points.

Suppose RS=8 in. and ST=4 in. Find the length of to the nearest tenth. Show your work.
1 point for the formula, 1 point for showing your steps, 1 point for the correct answer, and 1 point for correct units.