if 45% of students of a school play for 2 hours the central angle of students represented by this is ____
Answers
Given : 45% of students of a school play for 2 hours
To Find : the central angle of students represented
Solution:
A pie chart (or a circle chart) is a circular statistical graphic, which is divided into slices to illustrate numerical proportion.
In a pie chart, the arc length of each slice (and consequently its central angle and area), is directly proportional to the quantity it represents.
In a pie chart, each sector represents a particular part of data
and the magnitude of the sector is directly proportional to the magnitude of the specific part of the data
100 % of students are represented by 360°
=> 1% of students are represented by 360°/100 = 3.6°
=> 45 % of students are represented by = 45 x 3.6° = 162°
if 45% of students of a school play for 2 hours the central angle of students represented by this is 162°
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