railway RRB Technician Grade 3 Mock Test 2024 Quantitative Aptitude Trigonometry Heights and Distances
The angle of elevation from point A to 20-meter-high building is 45°. A flag is hoisted at the top of building and angle of elevation from point A to top of flag is 60° then length of flag pole is?
1
20(√3 + 1)
2
20√3
3
20(√3 - 1)
4
20