Find x. Round to the nearest tenth if necessary. Assume that segments that appear to be tangent are tangent. Your help is much appreciated - thanks! :)
Accepted Solution
A:
The radius of the circle 9/2, or 4.5 units.
Tangent lines are perpendicular to the radius. Thus, we can form a right triangle, since x is a tangent segment.
The legs of the right triangle will be 4.5 and x.
The hypotenuse will be the sum of the 3 and the length of the radius. The hypotenuse is 7.5.
Look at the attached image to help you understand the visualization of the right triangle.