Question on: JAMB Mathematics - 2006
A
35o
B
55o
C
25o
D
45o
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Correct Option: B
Construction RQ
< PRQ = 90o(amgle substended at the circumfernce of a circle by diameter). Also in figure PQRS
< PQS + PSQ = 180(supplementary angle)
< PQS = 180 - 145 = 35
In (\bigtriangleup)PRQ x = 180 - 935 = 90)
x = 55
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