Question

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​

Answer 1

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