a)72°
b)54°
c)45°
d)36°
Please answer with explanation.
please don't answer useless.
Answers
Answer:
Option (b)
Step-by-step explanation:
Given :-
Number of tickets are sold fair by the each student in the bar graph .
To find :-
If the above data is to be drawn on pie chart,then what is the angle of sector for the tickets sold by student Rizwina?
Solution :-
Given that :
From the bar graph
Taken :
On X-axis names of the students
On Y-axis number of tickets sold by each students
Number of tickets sold by Nirmal = 20
Number of tickets sold by Azar = 10
Number of tickets sold by Aswin = 21
Number of tickets sold by Vicky = 11
Number of tickets sold by Sam = 23
Number of tickets sold by Rizwina = 15
Total number of tickets sold by all the students
= 20+10+21+11+23+15 = 100
If the data is represented by a pie chart there are sectors for each student.
The sum of all angles is equal to 360°
Number of tickets sold by Rizwina = 15
Total tickets = 100
Part for the tickets sold by Rizwina = 15/100
=> 3/20
The angle for 3/20 out of 360°
=> (3/20)×360°
=> (3×360°)/20
=> 1080°/20
=> 108°/2
=>54°
Answer :-
The angle of sector for the tickets sold by student Rizwina is 54°
Used formulae:-
- The sum of all angles in pie chart is 360°
Points to know:-
- There are rectangles in the bar graph.
- The width of all the bars are equal.
- There are sectors in the pie chart.
- The sum of the angles of sectors in the pie chart is 360°
Answer:
b)54° explanation is in above