Question

a cable 25m long reaches a point 7m away from the foot of a tower.what is the length of the cable required to connect the top of the tower to a point 18m away from the tower

Answer 1

given
length of cable=25m
it reaches a point from foot=7m
so the height of the tower =25-7=18m.
distance to the connection point is 18m.
so total length required is 36m.