TR is the tangent to the circle PQR with centre O. Find t...
TR is the tangent to the circle PQR with centre O. Find the size of ∠PRT
A.
44o
B.
46o
C.
60o
D.
74o
E.
118o
Correct answer is C
Reflex < POQ = 360° - 148° = 212°
< PRO = 360° - 330° = 30°
But < ORT = 90° ⟹ < PRT = 90° - 30° = 60°
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