SOLUTION: please help solve this question the teacher asked a class if they recycled newspaper and glass. there were 24 pupils in a class. 9 pupils answered 'newspaper only' on a pie cha

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Question 468913: please help solve this question
the teacher asked a class if they recycled newspaper and glass.
there were 24 pupils in a class.
9 pupils answered 'newspaper only'
on a pie chart. what would the angle be for the sector 'newspaper only'?
Answer by ccs2011(207) About Me  (Show Source):
You can put this solution on YOUR website!
Pie chart is a circle.
Circle is 360 degrees.
Ratio of 9/24 is same as ratio of angle/360
9%2F24+=+A%2F360
Multiply both sides by 360
135+=+A
The angle of the sector is 135 degrees.