Steve's answer makes perfect sense to me, I would do it the same way not knowing the height of the building.
If you forgot to state the height of the building, just plug in the value for h, and solve for s
in Steve's equation:
s/3 = (s+10)/h
e.g. if h = 25m
s/3 = (s+10)/25
25s = 3s + 30
22s = 30
s = 30/22 = appr 1.36 m
riposting this.
the answer kindly supplied by Steve is beyond my understanding.
all i want to know please is how long will the shadow be cast on the ground by a 3m tall vertical fence with the sun behind it as follows:
THIS IS NOTHING TO DO WITH A LADDER
A fence 3m tall is erected vertically and parallel to a building that is 10m away
please can someone tell me the maximum length of the shadow the fence will cast on the ground - thank you
1 answer
1 answer