A fence 8 ft tall runs parallel to a tall building at a distance of 4 ft from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building? (Round your answer to two decimal places.)

dammmnnn ! cant understand what the meaning of it !!!

Question

A fence 8 ft tall runs parallel to a tall building at a distance of 4 ft from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building? (Round your answer to two decimal places.)

dammmnnn ! cant understand what the meaning of  it !!!

rob1525 · Answer

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anonymous · Answer

Yep what next though, not sure if to use trig or what

rob1525 · Answer

Okay so I think by solving for theta youll know what angle the ladder has to be to go over the fence. then you need to solve for the hypotunuse of the larger triangle.|dw:1352702237665:dw|

rob1525 · Answer

I think the answer is 17.89 ft. Do you have the aswer in the back of the book? to verify.

anonymous · Answer

It's 16.65ft

rob1525 · Answer

So i figured that if all these triangles are the same all you have to do is multiply the hypotunus by 2 to get the lenght of the ladder. thats all it got.|dw:1352703118934:dw|