Thread: Pie charts help

I have a pie chart showing a girl's daily activities. I have the angles and I need to calculate the time in hours.

This girl spends 150 degrees of her time sleeping. How many hours is that (explanation included pls). Thanks

Well if 360 degrees is 24 hours, find how many hours one degree is.

24 hours -> 360 degrees means (24/360) hours -> degree.

Then multiply that by 150:

(150*24/360) -> 150 degrees.

Originally Posted by angelmt

I have a pie chart showing a girl's daily activities. I have the angles and I need to calculate the time in hours.

This girl spends 150 degrees of her time sleeping. How many hours is that (explanation included pls). Thanks

hours. Do you see why?

So, if I worked it out well, the answer should approximately equal to 7 hrs.

Originally Posted by angelmt

So, if I worked it out well, the answer should approximately equal to 7 hrs.

Your answer is not correct. Recheck your arithmetic.

Ok, I just rechecked the sum and the answer is 10 hrs. Hope it's correct

Originally Posted by angelmt

Ok, I just rechecked the sum and the answer is 10 hrs. Hope it's correct

It is.

Thanks for your help. I really appreciated it