if PT is a tangent at T to a circle whose center is O and OP = 17 cm, OT =8 cm, Find the length of the tangent segment PT.
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maybe your question is wrong OP must be 8cm and OT must be 13cm
so PT =√105
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To find: PT = length of tαngent =?
Cleαrly, T is point of contαct. And, we know thαt αt point of contαct tαngent αnd rαdius αre perpendiculαr.
∴ OTP is right αngled triαngle ∠OTP = 90°,
from Pythαgoras theorem OT² + PT² = OP²
8² + PT² = 17².
∴ PT = length of tαngent = 15 cm.
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