answer all the parts from a-c

A hole is to be drilled as shown by the circle. Using the part geometry shown below, indicate on the part sketch where locator(s) should be positioned according to the 3-2-1 principle. Use dashed lines to indicate locators on hidden surfaces. Also indicate where clamping force(s) should be applied using arrows. Use the minimum number of clamping forces.

The figure shows the chain drive of a bicycle. How far will the bicycle move if the pedals are rotated through 180°? Assume the radius of the bicycle wheel is 12.7 inches. The bicycle will travel approximately (Round to the nearest tenth.) in. C -1.95 in 4.21 in