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 162° of the circle, what percentage of MegaTek employees are in manufacturing? Choices:
A) 20 %  B) 25 %  C) 30 %  D) 45 %  E) 72 %

Rationale: answer : d 162 ° divided by 360 ° equals 0.45 , therefore the sector is equal to 45 % of the total
Answer: D