The formula of an area of a circle with radius r:

Part A.
We have diameter of the circle d = 8 in. The diameter of a circle is equal two times length of a radius.
Therefore:

Calculate the area:

Answer: C. 16π square inches.
Part 2.
Look at the picture.
Total area:

Answer: C. 36π square inches
I think it’s B I’m not sure about it but I hate wan I gat it wrong.
Answer:
8
Step-by-step explanation:
72 if your needing to times them
Answer:
P is MPO O A.) 36° O B.) 64° O C.) 116° O D.) 244°
Step-by-step explanation:
MPO O A.) 36° O B.) 64° O C.) 116° O D.) 244°