The area of square ABCD above is 18. The shaded region is the intersection of the square and a circular region centered at C. What is the area of the shaded region?
Options.
A) 18−9/4∗π	B) 18−9/2∗π	C) 9+9/4∗π	D) 9+9/2∗π	E) 9/2−9/4∗π
=Square - Quarter circle   =18- pi*18/4   =18- pi*9/2   ANSWER:18−9/2∗π
<result>B</result>
The area of square ABCD above is 18. The shaded region is the intersection of the square and a circular region centered at C. What is the area of the shaded region?