Two circles are inscribed and circumscribed about a square ABCD, length of each side of the square is 32 . P and Q are two points respectively on these circles, then is equal to
7168
7000
7050
7150
Let the centre of the square be the origin O and the lines through O parallel to the side of the square be the coordinate axes. Then the vertices of the square are A(16, 16), B(–16, 16), C(–16, –16) and D(16, –16). The radii of the inscribed and circumscribed circles are
respectively 16 and and their centre is at the origin.
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