Question 55520
\Use the fact that there are 360° in a circle to determine the measures of the following angles. 
1.	a straight angle:
A straight angle would cut the circle in half: 360/2=180 degrees
2.	halfway up to vertical
That would be half of a straight angle if I'm visualizing this correctly: 180/2=90 degrees
3.	 the angle between the hour and the minute had of a clock at 4 o’clock (hint: Draw a picture.  Notice what fraction of the circle is used for each hour on the clock.)
There are 12 hours on the clock face, so you have 4/12=1/3 of the clock face.
360/3=120 degrees
4.	if you want to cut a pizza into six equal pieces, what should the angle be between the cuts?
360/6=60 degrees
Happy Calculating!!!