If the radius of a circle is decreased by 50%, find the percentage decrease
Choose one:
A) 22  B) 099  C) 75  D) 26  E) 18
Let original radius = R.   New radius = =   Original area = and new area =   Decrease in area = = 75%   Answer: 75
<result>C</result>
If the radius of a circle is decreased by 50%, find the percentage decrease