Pie Chart Creation Guide

Steps to Draw a Pie Chart

The place for educational tour	Pokhara	Lumbini	Illam	Kathmandu	Total
Number of students	75	55	81	42	253

Place	No. of Students	Angle at the centre
Pokhara	75	(360°/253) × 75 = 107°
Lumbini	55	(360°/253) × 55 = 78°
Illam	81	(360°/253) × 81 = 115°
Kathmandu	42	(360°/253) × 42 = 60°
Total	253	360°

Title	Food	Health	Miscellaneous	Saving	Total
Sum of money (in percent)	20	15	35	30	100

Title	Percentage (%)	Angle at the centre
Food	20%	(360°/100) × 20 = 72°
Health	15%	(360°/100) × 15 = 54°
Miscellaneous	35%	(360°/100) × 35 = 126°
Saving	30%	(360°/100) × 30 = 108°
Total	100%	360°

Grade	5	6	7	8	Total
Number of students	45	55	40	60	200

Grade	No. of Students	Angle at the centre
Grade 5	45	(360°/200) × 45 = 81°
Grade 6	55	(360°/200) × 55 = 99°
Grade 7	40	(360°/200) × 40 = 72°
Grade 8	60	(360°/200) × 60 = 108°
Total	200	360°

Details of favourite subjects of students of Janta Secondary School

81°

57°

114°

108°

Maths

Science and Technology

Nepali

Social Studies

A question 'which subject do you like?' is asked to the 480 students of Janta Secondary School. The following pie chart is prepared on the basis of the answers obtained from them. Study the pie chart and answer the following asked questions.

Questions:

(a) Find the number of students who like each subject?

(b) What is the difference between the number of students in the most and least favourite subjects? Find.

(c) What is the percentage of students who like Mathematics and Science and Technology?

Here,
Total number of students = 480
Now, 360° = 480

1° = 480360 = 43

(a) Number of students who like Nepali
= 114° × 43 = 43 × 114 = 152

Number of students who like Maths
= 81° × 43 = 43 × 81 = 108

Number of students who like Science and Technology
= 57° × 43 = 43 × 57 = 76

Number of students who like Social Studies
= 108° × 43 = 43 × 108 = 144

(b) Difference between most and least favourite subjects: Maximum number of students who like Nepali = 152
Minimum number of students who like Science and Technology = 76
Difference = 152 − 76 = 76 students

(c) Percentage of students who like Mathematics and Science & Technology: Percentage of students who like Mathematics = 108480 × 100% = 22.5%

Percentage of students who like Science and Technology = 76480 × 100% = 15.8%

Subject	Angle	Number of Students	Percentage
Maths	81°	(4/3) × 81 = 108	22.5%
Science & Tech.	57°	(4/3) × 57 = 76	15.8%
Nepali	114°	(4/3) × 114 = 152	31.7%
Social Studies	108°	(4/3) × 108 = 144	30.0%
Total	360°	480	100%

If any data is equal to the area of a circle, different titles are presented in different sectors, then the picture is called a pie chart.

1Step 1: Find the total value of the given data.

2 Step 2: Equating the total value of the given data with 360°, calculate the size of the angle in each title.

Angle = 360°Total frequency × value of each title

3Step 3: Taking a suitable radius, construct a circle and draw a radius.

4Step 4: With the help of protractor, taking the radius as the base line construct the angle in each title respectively.

5Step 5: Put the different colours in different sectors. Show the index of the expenditure of colour.

6Step 6: Give the title of pie chart. Now, the pie chart is ready.

🎉 Well Done! All Steps Completed!

Pie Chart Creation Guide

Steps to Draw a Pie Chart

Details of students who like the places for educational tour

Details of students who like the places for educational tour

Distribution of Dipendra's monthly expenditure in different titles and saving amount

Distribution of Dipendra's monthly expenditure

Number of students studying from grade 5 to 8 in Gyan Jyoti Secondary School

Number of students from grade 5 to 8 in Gyan Jyoti Secondary School

Details of favourite subjects of students of Janta Secondary School

Details of favourite subjects of students (Total = 480)

🥇 Solve the Pie Chart Question