A chord 8cm is drawn in a circle of radius 5cm . Find the length of tangents from external point P to A and B
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We have a circle of radius 5 cm with a chord of length 8 cm.
We have to find length TP.
We have,
OP=5 cm
PM=4 cm .......(perpendicular from the centre divides the chord)
OM=3 cm .......(by using Pythagorean triplet)
Let (watch from picture)
Use trigonometric ratio in the triangle PMO and POT we get,
(Watch from picture)
Therefore, TP =6.66 cm
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