Problem Solving
试题详情
题目：
As shown in the figure above, a thin conveyor belt 15 feet long is drawn tightly around two circular wheels each 1 foot in diameter. What is the distance, in feet, between the centers of the two wheels?
选项:
A、(15-π)/2
B、5π/4
C、15-2π
D、15-π
E、2π
答案:
A
