10th Class
Mathematics
Triangles
Question Bank
Triangles
question_answer
At what height does the tip of a 34m long ladder placed at a distance of 16 m from a wall, touch the wall?
A) 29 m
B) 34 m
C) 30 m
D) 18 m
Correct Answer:
C
Solution :
Let \[a+17(-d)=0\]m be the height at which the ladder touches the wall. According to Pythagoras' theorem, \[\Rightarrow \]\[{{t}_{18}}=0\]\[\text{9},\text{ 18},\text{ 27},\text{ }......\text{999}\]