Buzz
Pie Chart
1. Solve Exercise 1 Page 100 Math Book Grade 7
Problem: Use the information from the chart below to answer the questions.
a) What does the chart represent information about?
b) How many objects are represented?
c) What is the percentage of each object compared to the whole?
Guidelines for solving:
Read the pie chart:
+ Identify the number of objects represented by counting the number of sectors in the circle diagram.
+ Read the chart legend to know the names of the objects.
+ Determine the percentage ratio of each object compared to the whole by reading the numbers written on the chart.
Answer:
a) The chart represents information about the percentage ratio of favorite fruits of class 7A.
b) There are 4 objects represented: banana; mango; rambutan; guava.
c) The percentage ratio of each object compared to the whole is:
+ Banana: 25%
+ Mango: 35%
+ Rambutan: 20%
+ Guava: 20%
2. Solve Exercise 2 Page 101 Math Book Grade 7
Problem: Represent the data from the following statistical table in a pie chart 3.
Guidelines for solving:
Identify the color representing the object.
Fill in the corresponding percentage ratio into the pie chart.
Answer:
3. Solve Exercise 3 Page 101 Math Book Grade 7
Problem: Analyze the data represented on the following chart:
Guidelines for solving:
What does the chart represent information about?
How many objects are represented?
Which object has the highest percentage ratio?
Which object has the lowest percentage ratio?
Answer:
The chart represents the percentage ratio of academic performance classifications of students in class 7A.
Class 7A has 4 classifications: Excellent, Good, Average, Below Average.
The Good performance classification has the highest percentage ratio (50%).
The Average and Below Average performance classifications have the lowest percentage ratio (both are 14%).
Above is the guidance for Grade 7 Mathematics solving on pages 100, 101, students should also refer to Grade 7 Mathematics solving on pages 106, 107 and review Grade 7 Mathematics solving on pages 93, 94, 95 to ensure understanding.
- Grade 7 Mathematics solving on pages 106, 107, Creative Horizon - Lesson 3: Line segment graph
- Grade 7 Mathematics solving on pages 109, 110, Creative Horizon - Exercises at the end of chapter 5
