WAEC Mathematics 2025 Objective — Question 28
Question 28 of 51 from the West African Examinations Council (WAEC) Mathematics 2025 Objective paper, with the correct answer and a full explanation.
Advertisement
The dimensions of a rectangular base of a right pyramid are 9 cm by 5 cm. If the volume of the pyramid is 105 cm^3, how high is the pyramid?
- A. 10 cm
- B. 6 cm
- C. 8 cm
- D. 7 cmCorrect
Explanation
Volume = (1/3) x base area x height. Base area = 9x5=45cm^2. 105 = (1/3)(45)(h) => 105=15h => h=7cm.
Advertisement
Sign up free to unlock
- Score tracking
- Practice history
- Saved questions
- Progress dashboard
- Personalized sessions
- Weak-topic breakdown
…and/or go further with premium services and No Ads.