railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Trigonometry Heights and Distances
The angle of elevation of a ladder leaning against a wall is 45° and the foot of the ladder is 15m away from the wall. What is the length of the ladder?
1
10 √2 m
2
20 m
3
18 √2 m
4
15 √2 m