1. Suppose a tire of radius 0.5 meters is spinning at the rate of 2 radians per second. Imagine a line drawn through the center of the tire (using chalk) that is initially parallel with the ground. Sketch a graph showing the height of the end of that line as ...

1. The following are lengths of sides of right triangles. Find the length of the missing side:
   1. 1, x, 2
   2. 1, 1, x

2. If a wheel of radius 10 centimeters turns through 10.7 revolutions, how far does the wheel travel, and by what angle (in radians) does it turn?