Improper because the top is supposed to be lower than the bottom
D), I believe it is -42. Correct me if im wrong :}
Answer: 113.1 cm^2
Step-by-step explanation: The formula to find the area of a circle is 3.14r^2. R stands for radius which is 6 in this case so just plug that in for R. 3.14(6)^2=113.1
Answer:
10.2 ft
Step-by-step explanation:

64 +
= 169

b=
b= 10.2469