edited by
371 views
0 votes
0 votes

A ladder leans against a vertical wall. The top of the ladder is $8$ m above the ground. When the bottom of the ladder is moved $2$ m farther away from the wall, the top of the ladder rests against the foot of the wall. What is the length of the ladder?

  1. $10$ m
  2. $15$ m
  3. $20$ m
  4. $17$ m

 

edited by

Please log in or register to answer this question.

Related questions

0 votes
0 votes
0 answers
3
go_editor asked Mar 9, 2020
321 views
The angle of elevation of the top of a tower $30$ m high, from two points on the level ground on its opposite sides are $45$ degrees and $60$ degrees. What is the distanc...
1 votes
1 votes
1 answer
5
Lakshman Bhaiya asked Apr 1, 2020
874 views
If $cosec\theta-\sin\theta=1$ and $\sec\theta-\cos\theta=m$, then $l^{2}m^{2}(l^{2}+m^{2}+3)$ equals to:$1$$2$$2 \sin\theta$$\sin\theta \cos\theta$