The centre of a circle is at O and its diameter is of length 8 cm. Which of the points P, Q, R and S lies on the circle if OP = 8 cm; OQ = 4 cm; OR = 5 cm and OS = 6 cm?

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Solution

The correct option is B Q
Since the diameter of the circle is of length 8 cm.
Radius will be 8/2 = 4 cm.
The points which lie on the boundary of the circle will have distance of 4 cm from O.
So point Q will be lying on the circle because OQ = 4 cm

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