The length of the longer pieces is 5/8 of the total length of the beam.
The shorter wooden beam is 120 cm shorter than the longer piece.
Find the length of the wooden beam.
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Answer:
The formula for the section modulus is beam width times beam depth squared divided by 6. A two 2-by-6 standard beam has actual dimensions of 1.5-by-5.5 inches which would give a section modulus of 1.5 x 5.5 x 5.5 / 6 = 7.6 which is not enough for this example. A 2-by-8 beam would be sufficient.
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Answer:
lenght×breath
is the answer
hope it will help you
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