if tangent at a point P to a circle of centre O cuts a line through O at Q such that PQ=24cm and QO=25cm ,find radius of circle
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radius of circle is 7cm
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Answer:given in the question:
PQ = 24 cm
OQ = 25 cm
OP = radius = ?
P is a point of contact , at point of contact , tangent and radius are perpendicular to each other.
Therefore triangle is right angled triangle angle OPQ = 90°
BY pythagoras theorem,
OP = 7 cm
Step-by-step explanation:
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