Answer:
A) 31.4
B)78.5
Step-by-step explanation:
A)2(pi)(r)
2*3.14*5=31.4
B)(pi)(r^2)
3.14*5^2=78.5
The product of something is what you get after you multiply two numbers together
The answers would be:
9: $421.54
10: $872
11: $4,706.66
12: $645.83
13: $626.26
14: $3,981.22
15: $1,110.28
16: $210.50
