If the angle between two tangents Drawn from an external point P to a circle of radius a and centre O, is 60 degree, then find the length of OP.
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2a is the length of OP
u need to use tangent is perpendicular to radius
prove congruency and then use trig
u get tan 60 is root 3
multiply this with a u get length of tangent from p to circle
then use pythagoras theorem
u get OP =2a
u need to use tangent is perpendicular to radius
prove congruency and then use trig
u get tan 60 is root 3
multiply this with a u get length of tangent from p to circle
then use pythagoras theorem
u get OP =2a
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