A pie chart is being made with four sectors. Each sector will be a certain percentage of the total area. The table below shows the size of each sector as a percentage of the total area. Sector 1 = 5% Sector 2 =30% Sector 3 = 50% Sector 4 = 15%
What will be the measure of the central angle of sector 4? A. 27° B. 54° C. 5.4° D. 57°