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 
It would have to be D: increasing the given orientation angle of the disk, but not exceeding and angle or90!
45+10x the x stands for how many classes you take
To do this you have to divide 135 miles by 5 hours. You will get the answer of 27 miles per hour.
6a+2s=x (total amount of money)
6 (90)+2 (50)= x
540+100=640
The total amount of money is $640
hope that helps!
