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?

To calculate the sectoral angle for a class of 72 students, we need to determine the proportion of the class size to the total population of students in the school.

The proportion can be calculated as follows:

Proportion = Class size / Total population
Proportion = 72 / 810
Proportion ≈ 0.0889

To convert this proportion to an angle, we multiply it by 360 degrees (since a full circle is 360 degrees):

Sectoral angle = Proportion * 360
Sectoral angle ≈ 0.0889 * 360
Sectoral angle ≈ 32.04 degrees

Therefore, the sectoral angle for a class of 72 students is approximately 32.04 degrees.