A pie chart shows how a student spends $24$ hours of the day: Sleep $8$ h, School $6$ h, Study $4$ h, Play…
A pie chart shows how a student spends $24$ hours of the day: Sleep $8$ h, School $6$ h, Study $4$ h, Play $2$ h, Others $4$ h. The sector angle for Sleep is:
$90^\circ$
$100^\circ$
$120^\circ$
$150^\circ$
Solution
Sleep is $8/24$ of the day. Angle $= (8/24)\times 360^\circ = 120^\circ$.