Answer:
4
Step-by-step explanation:
The first is by Angle - Side - Side
The second is by Angle - Angle - Side
The third one is by Side - Angle - Side
The forth is by Side - Side - Side
The answer is 15/2
3 3/4 =15/4
2=2/1
15/4 times 2 /1 equals to 30/4
30/4 =15/2
30 divided by 2 =15
4 divided by 2=2
V=hpir^2
h=4
r=1.25
v=4pi1.25^2
v=4pi1.5625
v=6.25pi
v=19.625
rounded to hundreth
v=19.63 ft³
1 book for each student with 9 books left over, or 2 books each student with 3 books left over. so two ways.
