Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Mathematics Trigonometry Heights and Distances
A ladder 25m long just reaches the top of a building 20m high from the ground, then the distance of the foot of the ladder from the building is:
1
15 m
2
14 m
3
10 m
4
More than one of the above
5
None of the above