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Saturday, 15 August 2026
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Mathematics Past Questions and Answers

Topic: Euclidean Geometry

Jamb Mathematics Questions - Euclidean Geometry

Question 16:
In the circle above, with centre O and radius 7 cm. Find the length of the arc AB, when < AOB = 57°.
  • A 5.32 cm
  • B 4.39 cm
  • C 7.33 cm
  • D 6.97 cm
View Answer & Explanation
Question 17:
Given the quadrilateral RSTO inscribed in the circle with O as centre. Find the size angle x and given RST = 60o
  • A 100<sup style='font-size: smaller;'>o</sup>
  • B 140<sup style='font-size: smaller;'>o</sup>
  • C 120<sup style='font-size: smaller;'>o</sup>
  • D 10<sup style='font-size: smaller;'>o</sup>
View Answer & Explanation
Question 18:
In the diagram above MN is a chord of a circle KMN centre O and radius 10cm. If < MON = 140°, find, to the nearest cm, the length of the chord MN.
  • A 10cm
  • B 18cm
  • C 17cm
  • D 12cm
View Answer & Explanation
Question 19:
Calculate the perimeter of a sector of a circle of raduis 12cm and angle 60o.
  • A (12 + 4\(\pi\))cm
  • B (24 + 4\(\pi\))cm
  • C (12 + 6\(\pi\))cm
  • D (24 + 6\(\pi\))cm
View Answer & Explanation
Question 20:
Calculate the perimeter of a sector of a circle of raduis 9cm and angle 36o.
  • A 18cm
  • B (18 + \(\frac{9\pi}{5}\))cm
  • C (9 + \(\frac{9\pi}{5}\))cm
  • D \(\frac{9\pi}{5}\)cm
View Answer & Explanation