WAEC - Mathematics (2015 - No. 23)
The population of students in a school is 810. If this is represented on a pie chart, calculate the sectoral angle for a class of 72 students
32o
45o
60o
75o
คำอธิบาย
In a school with students' population 810, the sectoral angle for a class of 72 students is
= \(\frac{72}{810}\) x 360º
= 32º
= \(\frac{72}{810}\) x 360º
= 32º