If the diameter is 12 inches, the radius is 6 inches, because the radius is half the diameter.
Given the formula

we have

When you fold the circle in half, the resulting figure has half the area.
So, you start with a circle with area 
You fold it once and you have a semicircle with area 
You fold it twice and you have a quarter circle with area 
Answer:
I think its A
Step-by-step explanation:
correct me if im wrong
It is thirteen because you have to add to 6 till you get eleven and you go up 8 more and then you subtract it all and get your answer
Answer:
4 ounces = 1/4 lbs (pounds) 1/3 of 66 is 22
I think it’s 90% cuz it’s 45/50 therefore 90/100