WAEC - Mathematics (1997 - No. 30) | ExamPlay

WAEC - Mathematics (1997 - No. 30)

O is the centre of the circle PQRS. PR and QS intersect at T POR is a diameter, ∠PQT = 42^o and ∠QTR = 64^o; Find ∠QRT

68^o

64^o

42^o

32^o

22^o.

Explanation

TQR = 90 - 42 = 48^o
QRT = 180 - (64 - 48)
= 180 - 112
= 68^o

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