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[" (see Fig."5.7)" .The rungs decrease "...

[" (see Fig."5.7)" .The rungs decrease "],[" uniformly in length from "45cm" at the "],[" bottom to "25cm" at the top.If the top and "],[" the bottom rungs are "2(1)/(2)m" apart,what is "],[" the length of the wood required for the "],[" rungs? "],[" I Hint: Number of rungs "=(250)/(25)" I "]

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