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试题详情
In the stair unit in the figure above, all the angles are right angles. The left side is 5'4", and the bottom is 9'2". Each vertical riser is 8". The top step is 10(1/4)", and each step below it is 1" more than the preceding step.
Quantity A
The perimeter, in inches of the figure above
Quantity B
300
答案：A