Theo made the table below to show the number of middle school students who attended the last football game. If this data were displayed in a circle graph, how many degrees would be in the sector representing the 8th graders?
Grade Number of Students
in Attendance
6 375
7 275
8 350
A. 145°
B. 126°
C. 35°
D. 65°
To calculate the answer, we need to first find the total number of students in attendance:
Total number of students = 375 + 275 + 350 = 1000
To find the degree measure of the sector representing the 8th graders, we need to use the following formula:
Degree measure of sector = (Number of students in 8th grade / Total number of students) x 360°
Plugging in the values we get:
Degree measure of sector = (350/1000) x 360° = 126°
Therefore, the answer is B. 126°.