| "Would that be an ok way to do the quesiton?"
It works in this case because the rim and 1/2 of the hub are exactly ONE. If the hub would have been 3 inches you could not follow your approach, because the spoke extend inside the hub by 1/2 inch, but not necessarily 1/2 inch from the center of the wheel.
Again, drawing a quick diagram is the way to approach this and leaves little chance for errors. Visualizing the SAT problems that involve distances is typically the best and fastest way. A lot of times, the answer just JUMPS at you, well before having to make any calculations. This case was no different! |