Find the area of the square in the figure A square unitsSol
     Find the area of the square in the figure.  A =  square units. 
  
  Solution
given equation of circle x2+y2=16
x2+y2=42
radius of circle = 4 units
diagonal of square is twice the radius of circle
diagonal d =2*4
diagonal d =8
diagonal of square is squareroot2 time the length of side(s)
d =(2)s
8=(2)s
s=8/2
s=42
area of square A=s2
area of square A=(42)2
area of square A=32 square units

