Draw
circle of radius 3cm & Construct a pair
of tangents such that angle blw them is 40°
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Draw a circle of radius 3cm and center O
Take a point P on the circle
Make an angle of 140o with the line OP and vertex O and join OQ
Draw perpendiculars to OP and OQ with vertices P and Q respectively
These perpendiculars meet at point T such that ∠PTQ=40o
∠OPT=∠OQT=90o∠PTQ+∠POQ=180o∠POQ=180−40=140o
I hope it help you....
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