Check sibling questions

Suppose we are given data like

Company

Percentage of people

Samsung

40%

Apple

25%

Vivo

20%

Mi

15%


We convert

  Percentage → Angles

 

We know that

  Angle at center = 360°

 

So, we convert

3.jpg

So, our table becomes.

Company

Percentage of people

Fraction

Angle = Fraction × 360 °

Samsung

40%

40/100 = 4/10

4/10 × 360 = 4 × 36 = 144° 

Apple

25%

25/100 = 1/4

1/4 × 360  = 90° 

Vivo

20%

20/100 = 2/10

 

2/10 × 360 = 2 × 36 = 72° 

Mi

15%

15/100 = 3/20

3/20 × 360 = 3 × 18 = 54°

 

We follow the steps

  1. Draw a circle of any radius.

     Mark Radius as OA.

Drawing a pie chart - Part 2

  1. Put protractor on AO and

   Draw largest angle 144°

Drawing a pie chart - Part 3

 

  1. Now, put protractor on AO

         and

    Mark next largest angle 90°

Drawing a pie chart - Part 4

  1. Now, put protractor on OC and

     Mark next largest angle 72°

Drawing a pie chart - Part 5

 

  1. The remaining portion is 54°

Drawing a pie chart - Part 6

  1. Now, label the pie chart

 

Company

Percentage of people

Angle

Samsung

40%

144°

Apple

25%

90°

Vivo

20%

72°

Mi

15%

54°

Drawing a pie chart - Part 7

Let’s take another example

 

We are given the type of movie that students of class VIII like are

Company

Percentage of people
Super hero

50%

Animated

25%

Comedy

20%

Romance

5%

Draw a pie chart of the same

 

Now to make pie chart we have find angles

Company

Percentage of people

Fraction

Angle = Fraction × 360 °

Super hero

50%

50/100 = 1/2

1/2 × 360 = 180°

Animated

25%

25/100 = 1/4

1/4 × 360 = 90° 

Comedy

20%

20/100 = 1/5

 

1/5 × 360 = 72° 

Romance

5%

5/100 = 1/20

1/20 × 360 = 18°

 

We follow these steps

  1. Draw a circle of any radius.

     Mark Radius as OA.

Drawing a pie chart - Part 8

  1. Put protractor on OA and

   Draw largest angle i.e 180°

Drawing a pie chart - Part 9

  1. Now, put protector on OB, and draw the next largest angle i.e 90°

Drawing a pie chart - Part 10

  1. Put protractor on OC and mark next largest angle i.e 72°

Drawing a pie chart - Part 11

  1. The remaining portion is 18°

Drawing a pie chart - Part 12

  1. Now, Label the pie chart

Company

Percentage of people

Angle

Super hero

50%

180°

Animated

25%

90°

Comedy

20%

72°

Romance

5%

18°

Drawing a pie chart - Part 13

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Transcript

Drawing a pie chartSuppose we are given data like We convert Percentage → Angles We know that Angle at center = 360° So, we convert So, our table becomes. We follow the steps 1. Draw a circle of any radius. Mark Radius as OA. 2. Put protractor on AO and Draw largest angle 144° 3. Now, put protractor on AO and Mark next largest angle 90° 4. Now, put protractor on OC and Mark next largest angle 72° 5. The remaining portion is 54° 6. Now, label the pie chart Let’s take another example We are given the type of movie that students of class VIII like are Draw a pie chart of the same Suppose we are given data in following from Now to make pie chart we have find angles We follow these steps 1. Draw a circle of any radius. Mark Radius as OA. 2. Put protractor on OA and Draw largest angle i.e 180° 3. Now, put protector on OB, and draw the next largest angle i.e 90° 4. Put protractor on OC and mark next largest angle i.e 72° 5. The remaining portion is 18° 6. Now, Label the pie chart

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.