WAEC Mathematics 2015 Objective — Question 25
Question 25 of 50 from the West African Examinations Council (WAEC) Mathematics 2015 Objective paper, with the correct answer and a full explanation.
Advertisement
The angle of elevation of an aircraft from point K on the horizontal ground is 30°. If the aircraft is 800m above the ground, how far is it from K?
- A. 400.00m
- B. 692.82m
- C. 923.76m
- D. 1,600.00mCorrect
Explanation
sin30° = 800/d → d = 800/sin30° = 800/0.5 = 1600.00m.
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.