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Wednesday, 22 April 2026
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Mathematics Past Questions and Answers

Jamb 1998 Mathematics Questions

Question 41:
In the diagram, PR is a diameter of the circle PQRS. PST and QRT are straight lines. Find QRS
  • A 20<sup style='font-size: smaller;'>o</sup>
  • B 25<sup style='font-size: smaller;'>o</sup>
  • C 30<sup style='font-size: smaller;'>o</sup>
  • D 35<sup style='font-size: smaller;'>o</sup>
View Answer & Explanation
Question 42:
In diagram, PQ || ST and < PQR = 120o, < RST = 130o, find the angle marked x
  • A 50
  • B 65
  • C 70
  • D 80
View Answer & Explanation
Question 43:
In the figure, PQST is a parallelogram and TSR is a straight line. If the area of \(\bigtriangleup\)QRS is 20cm2, find the area of the trapezium PQRT.
  • A 35cm<sup style='font-size: smaller;'>2</sup>
  • B 65cm<sup style='font-size: smaller;'>2</sup>
  • C 70cm<sup style='font-size: smaller;'>2</sup>
  • D 140cm<sup style='font-size: smaller;'>2</sup>
View Answer & Explanation
Question 44:
TQ is tangent to circle XYTR, < YXT = 32o, RTQ = 40o. fIND < YTR
  • A 108<sup style='font-size: smaller;'>o</sup>
  • B 121<sup style='font-size: smaller;'>o</sup>
  • C 140<sup style='font-size: smaller;'>o</sup>
  • D 148<sup style='font-size: smaller;'>o</sup>
View Answer & Explanation
Question 45:
In the diagram, QTR is a straight line and < PQT = 30o. find the sin of < PTR
  • A \(\frac{8}{15}\)
  • B \(\frac{2}{3}\)
  • C \(\frac{3}{4}\)
  • D \(\frac{15}{16}\)
View Answer & Explanation