Area of the square is 6 squared, or 36.
Area of the quarter circle is (1/4) pi * radius squared, or: (.25)(36)(pi) = 9pi.
Shaded part = Area of square minus area of 1/4 circle:
36-9pi
well you know the curved arc and all the white is 1/4 of a circleso you just subtract the total area of square from part of a circlethe radius is 6 so 6x6=36pi/4 because it is a quarter of circle so it is 9pithe area of the square is 36 so 36-9pi equals shaded