Question

Two cemented walls are parallel to each other. A ladder is placed touching the top of the two walls and is inclined at an angle of 30 degrees. If the walls are 6 meters and 16 meters high, at least how long should the ladder be? (with solutions)

Answer 1

20 meters

Explanation:

the length of ladder = (16-6)/ sin30°

= 10/ ½ = 20 meters