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Posted by **Arjun** on Sunday, May 13, 2012 at 4:15am.

of 1 metre 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?

- Maths -
**Henry**, Tuesday, May 15, 2012 at 3:58pmWe form a rt. triangle:

X = 1 m. = Hor. side.

Y = 4 m. = Ver. side.

Z = Hyp. = Length of the ladder.

Z^2 = X^2 + Y^2

Z^2 = 1^2 + 4^2 = 17

Z = 4.1 m.

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