Question

the value of all central angle of a π chart is​

Answer 1

Answer:

20

%

of  

360

°

=

72

°

Explanation:

In any sector, there are  

3

parts to be considered:

the arc length,

the sector area

the sector angle

They all represent the SAME fraction of the whole circle.

The arc length is a fraction of the circumference

The sector area is a fraction of the whole area

The sector angle is a fraction of  

360

°

If the sector is  

20

%

of the pie chart, then each of these parts is  

20

%

of the whole.

The sector angle is therefore:

20

%

×

360

°

20

100

×

360

=

72

°

Step-by-step explanation: