A fence 3 feet tall runs parallel to a tall building at a distance of 7 feet 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?

HELP. I'm so lost !!(Headbang)

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- November 29th 2011, 06:43 PMhabibixoxMinimizing
A fence 3 feet tall runs parallel to a tall building at a distance of 7 feet 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?

HELP. I'm so lost !!(Headbang) - November 29th 2011, 07:01 PMProve ItRe: Minimizing
- November 29th 2011, 07:07 PMhabibixoxRe: Minimizing
I did and I got up to

tan^3 (theta) = 3/7

but how do i solve for theta?