isi-entrance 2020 Q11

isi-entrance · India · UGA Circles Area and Geometric Measurement Involving Circles
Two vertices of a square lie on a circle of radius $r$ and the other two vertices lie on a tangent to this circle. Then the length of the side of the square is
(A) $\frac { 3 r } { 2 }$
(B) $\frac { 4 r } { 3 }$
(C) $\frac { 6 r } { 5 }$
(D) $\frac { 8 r } { 5 }$. 
Two vertices of a square lie on a circle of radius $r$ and the other two vertices lie on a tangent to this circle. Then the length of the side of the square is\\
(A) $\frac { 3 r } { 2 }$\\
(B) $\frac { 4 r } { 3 }$\\
(C) $\frac { 6 r } { 5 }$\\
(D) $\frac { 8 r } { 5 }$.
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