Answer:
4.15 km.
Step-by-step explanation:
Answer:
37 - 5 = 32
32/4 = 8
8 students are in each of the 4 rows
Area=pir^2
diameter/2=radius
diameter=9
d/2=9/2=4.5=r
area=pi4.5^2
area=pi20.25
aproxpi=3.14
area=63.585
round hundreth
area=63.59
answer is 63.59cm^2