The population of students in a school is 810. If this is represented on a
MATHEMATICS
WAEC 2015
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
- A. 32°
- B. 45°
- C. 60°
- D. 75°
Correct Answer: A. 32°
Explanation
In a school with students' population 810, the sectoral angle for a class of 7 students is
= \(\frac{72}{810}\) x 360°
= 32°
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