Answer Since we know the diameter of the mirror frame to be 3ft and the circular mirror inside to be 1.5ft and we are asked to find the area of the circular mirror frame Solution Radius of the circular frame=d/2=3/2=1.5ft Radius of the circular mirror inside=1.5/2=0.75ft Area of the circular mirror frame=piR^2-pir^2 =3.14x1.5x1.5-3.14x0.75x0.75 =7.065-1.77 =5.295ft^2
Therefore 5.295ft^2 is the area of the circular mirror frame.
