问题
单项选择题
The MegaTek Corporation is displaying its distribution of employees by department in a circle graph. The size of each sector of the graph representing a department is proportional to the percentage of total employees in that department. If the section of the circle graph representing the manufacturing department takes up 72° of the circle, what percentage of MegaTek employees are in manufacturing ？（）
A. 20%
B. 25%
C. 30%
D. 35%
E. 72%
答案
参考答案：A
解析：
72° divided by 360° equals 0.2, therefore the sector is equal to 20% of the total.