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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. 32o
  • B. 45o
  • C. 60o
  • D. 75o
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Correct Answer: Option A
Explanation

In a school with students' population 810, the sectoral angle for a class of 72 students is

= \(\frac{72}{810}\) x 360º

= 32º


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