A pie chart shows the distribution of a city's population by age group. If the a
Practice Questions
Q1
A pie chart shows the distribution of a city's population by age group. If the age group 0-14 years comprises 20%, what is the angle for this segment?
72 degrees
60 degrees
90 degrees
45 degrees
Questions & Step-by-Step Solutions
A pie chart shows the distribution of a city's population by age group. If the age group 0-14 years comprises 20%, what is the angle for this segment?
Step 1: Understand that a pie chart represents a whole circle, which is 360 degrees.
Step 2: Know that the percentage of the population in the age group 0-14 years is 20%.
Step 3: Convert the percentage to a fraction by dividing it by 100. So, 20% becomes 20/100.
Step 4: Multiply the fraction (20/100) by the total degrees in a circle (360 degrees).
Step 5: Calculate (20/100) * 360, which equals 72 degrees.
Percentage to Angle Conversion – Understanding how to convert a percentage of a whole into an angle in a pie chart by using the formula (percentage/100) * 360.
