Acircle is drawn within a square as shown. what is the best approximation for the area of the shaded region? use 3.14 to approximate pi.

168.56 Square inches
create an equation to solve
(area of the square) - (area of the circle) = Area of shaded region
 s^{2} -  \pi  r^2 = A
s= side of square (28 in)
r = radius (1/2 diameter. diameter = 28. 28/2= 14)
Substitute known values

784-615.44= 168.56 in^2

In the first triangle 80+20+p=180 (since sum of all angles of a triangle is 180)so p= 80also in second triangle 55+45+q=180 (since sum of all angles of a triangle is 180)so q=80so we can conclude that p=80 degrees q=80 degrees so p=q=80 degreeshence option b is correct