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PAB is a secant and PT a tangent to the circle with Centre O if angle A T P = 40° , PA=9cm and AB=7 cm. Find: 1) angle APT 2) length of PT |
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Answer» Answer: 2) l ( PT) = 12cm Step-by-step explanation: (PT)^2= PA*PB. ...........TANGENT SECANT SEGMENT THEOREM (PT)^2= 9*16. ..........P-A-B (PT)^2= 144 PT = √144 PT = 12 cm |
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