Radius OB measures x units. Which expression represents
the circumference of the smaller circle with radius OA?
• (1}x units
• (2.1 x units
21tx units
67x units

The triangle shown has a hypotenuse with a length of 13 feet. the measure of angle a is 20 degrees. and the measure of angle b is 70 degrees. which of the following is closest to the length, in feet, of line segment ac? no need to use a calculator to find the trig numbers. each function is listed below. 4.4 5 12.2 35.7