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Mathematics Past Questions and Answers

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Jamb 1980 Mathematics Questions

Question 41:

In the figure, PQ\\SR, ST\\, ST\\RQ, PS = 7cm, PT = 7cm, SR = 4cm. Find the ratio of the area QRST to the area of PQRS.

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A 56.77
B 56.105
C 28:105
D 28:49
E 56:49

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Question 42:

In the figure, If PT is parallel to RS, PQ = PT, and angle SQT = 90^o, Find x

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A 35<sup style='font-size: smaller;'>o</sup>
B 50<sup style='font-size: smaller;'>o</sup>
C 55<sup style='font-size: smaller;'>o</sup>
D 70<sup style='font-size: smaller;'>o</sup>
E 80<sup style='font-size: smaller;'>o</sup>

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Question 43:

In the figure, PS bisects angle QPR. Find the ratio SR:QR.

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A 1:2
B 1:3
C 1:4
D 1:5
E 1:6

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Question 44:

fG is a given straight line and H is a fixed point. The construction marks shown in the diagram indicate the

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A Perpendicular bisector of the line
B Perpendicular bisector of th eline JK
C Perpendicular bisector of the line HI
D Perpendicular from H to the line FG

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Question 45:

In the figure, FGHJ is a circle of radius 3cm centre O. FOH, GOJ are perpendicular diameters. With G as centre of an arc of a circle is drawn to pass through F and H. Find the length of the perimeter of the lunar portion shaded.

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A 3\(\pi\)\(\sqrt{2 - 1}\)cm
B \(\frac{9}{2}\)\(\pi\)cm
C 3 \(\pi\)(1 + \(\frac{2}{2}\))
D 3(1 + \(\frac{2}{2}\))

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