PT is a tangent to the circle TYZX YT YX and lt... - JAMB Mathematics 1995 Question

PT is a tangent to the circle TYZX. YT = YX and < PTX = 50^o. Calculate < TZY

A

50^o

B

65^o

C

85^o

D

130^o

correct option: b

XTY = 50^o = TXY = (\frac{130^o}{2})

= 65^o

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