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JAMB - Mathematics (1991 - No. 44)
PMN and PQR are two secants of the circle MQTRN and PT is a tangent. If PNR = 110
o
and PMQ = 55
o
, find MPQ
40
o
30
o
25
o
15
o
Forklaring
PQM = 110
o
(Ext. < of a cyclic quad)
MPQ = 180
o
- (110 + 55)
= 180
o
- 165
o
= 15
o
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