Question

..A survey of 100 people found that 20 of them played badminton. in a pie chart what would be the sector angle of this group?​

Answer 1

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Since the % of people is 10. [ Out of 200 people 20 people played Chess so percentage of people played chess will be 10]

Since angle of Circle is

360°

Hence 10 % of 360 will be 36

so,

$∠ = 360 \times \frac{10}{100}$

Hence Sector angle is = 36°

Answer 2

Answer:

20 is 1/5 of 100 so we multiply 360×1/5

so 360×1/5 = 72°

hope it's helpful to you