WAEC Mathematics questions: Mensuration

27 questions with answers and explanations. Tap an option to check yourself.

1. Question 21· Mensuration· WAEC

   The parallel sides of a trapezium are 8 cm and 12 cm, and they are 5 cm apart. Find its area.

   • A100 cm²
   • B50 cm²
   • C480 cm²
   • D25 cm²

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   Explanation and discussion

2. Question 22· Mensuration· WAEC

   A cuboid measures 8 cm by 5 cm by 3 cm. Its total surface area is

   • A79 cm²
   • B120 cm²
   • C158 cm²
   • D240 cm²

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   Explanation and discussion

3. Question 23· Mensuration· WAEC

   The area of a sector of angle 90° in a circle of radius 14 cm is (π = 22/7)

   • A308 cm²
   • B616 cm²
   • C44 cm²
   • D154 cm²

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   Explanation and discussion

4. Question 24· Mensuration· WAEC

   A sector of a circle of radius 7 cm has an angle of 90°. Find the length of its arc. (Take π = 22/7)

   • A11 cm
   • B22 cm
   • C38.5 cm
   • D44 cm

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   Explanation and discussion

5. Question 25· Mensuration· WAEC

   Find the total surface area of a cube of side 5 cm.

   • A150 cm²
   • B125 cm²
   • C100 cm²
   • D25 cm²

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   Explanation and discussion

6. Question 26· Mensuration· WAEC

   Find the area of a circle of radius 7 cm. [π = 22/7]

   • A154 cm²
   • B44 cm²
   • C22 cm²
   • D308 cm²

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   Explanation and discussion

7. Question 27· Mensuration· WAEC

   Find the volume of a cuboid measuring 8 cm by 5 cm by 3 cm.

   • A16 cm³
   • B120 cm³
   • C158 cm³
   • D60 cm³

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   Explanation and discussion