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Question

Draw a circle of radius 3.5 cm and construct a central angle of measure 80o and an inscribed angled subtended by the same arc. Construct tangents at the points on the circle. Extend tangents to intersect. What do you observe?

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Solution

Draw a circle of radius r=3.5cm
Take a point P on the circle and mark a chord of length <2r and join PQ and also join P and Q with center O
Take any point S on the major sector and join S with P and Q
Taking OP and OQ as base, draw perpendiculars from P and Q respectively.
These perpendiculars meet at T
From measurement it is observed that
POQ=2PSQ

892100_563170_ans_a2b15decd27f47a4bb267c61bfd259fc.png

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