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Friday, 14 August 2026
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Mathematics Past Questions and Answers

Topic: Plane geometric shapes

Jamb Mathematics Questions - Plane geometric shapes

Question 6:
JAMB 1979
A square of cardboard is taped at the perimeter by a piece of ribbon 20cm long. What is the area of the board?
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  • A 20sq.cm
  • B 100sq.cm
  • C 25sq.cm
  • D 16sq.cm
  • E 36sq.cm
View Answer & Explanation
Question 7:
JAMB 1979
(Numbers indicate the lengths of the sides of the triangles) If the area of \(\bigtriangleup\) PQR is k2sq. units what is the area of the shades portion?
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  • A \(\frac{5}{9}\)k<sup style='font-size: smaller;'>2</sup> sq. units
  • B \(\frac{1}{3}\)k<sup style='font-size: smaller;'>2</sup> sq. units
  • C \(\frac{8}{9}\)k<sup style='font-size: smaller;'>2</sup> sq. units
  • D \(\frac{7}{9}\)k<sup style='font-size: smaller;'>2</sup> sq. units
  • E \(\frac{2}{3}\)k<sup style='font-size: smaller;'>2</sup> sq. u
View Answer & Explanation
Question 8:
JAMB 1979
In the parallelogram PQRS, PE is perpendicular to QR. Find the area of the parallelogram.
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  • A 60cm<sup style='font-size: smaller;'>2</sup>
  • B 65cm<sup style='font-size: smaller;'>2</sup>
  • C 72cm<sup style='font-size: smaller;'>2</sup>
  • D 144cm<sup style='font-size: smaller;'>2</sup>
  • E 156cm<sup style='font-size: smaller;'>2</sup>
View Answer & Explanation
Question 9:
JAMB 1981
A cuboid has a diagonal of length 9cm and a square base of side 4cm. What is its height?
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  • A 9cm
  • B \(\sqrt{65}\)cm
  • C \(4\sqrt{2}\)cm
  • D 7cm
  • E 6.5cm
View Answer & Explanation
Question 10:
JAMB 1981
What is the area between two concentric circles of diameters 26cm and 20cm?
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  • A 100\(\pi\)
  • B 169\(\pi\)
  • C 69\(\pi\)
  • D 9\(\pi\)
  • E 269\(\pi\)
View Answer & Explanation

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