Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Mathematics Trigonometry Heights and Distances
A ladder 9 m long reaches a point 9 m below the top of a vertical flagstaff. From the foot of the ladder, the elevation of the flagstaff is 60°. What is the height of the flagstaff?
1
9 m
2
10.5 m
3
13.5 m
4
More than one of the above
5
None of the above