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b) Darcy is given a scale diagram of the completed truss bridge. Each vertical beam in the scale diagram is 3.5 cm long. If each beam was drawn by reducing the dimensions of the first beam in a), what scale was used?

b) Darcy is given a scale diagram of the completed truss bridge. Each vertical beam in the scale diagram is 3.5 cm long. If each beam was drawn by reducing the dimensions of the first beam in a), what scale was used?

Fundamentals Of Construction Estimating
Fundamentals Of Construction Estimating
4th Edition
ISBN:9781337399395
Author:Pratt, David J.
Publisher:Pratt, David J.
Chapter7: Measuring Carpentry And Miscellaneous Items
Section: Chapter Questions
Problem 6RQ
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Please only any part (b), I have already answered (a)
8. Darcy is a welder who has been supplied with diagrams of the rectangular bridge beams that she will make a Pratt truss bridge. a) diagram of a beam that is 4 cm deep, 15 cm wide, and 1.4 m long. Darcy is told to make a Darcy is supplied with a second beam for another project by enlarging the size of the first beam by a scale of 1:25. What would be the measurements of the second The old dimensions of the beam are: Depth = 4Cm Width = 15Cm Length = 1.4M = 140Cm The newer dimensions are made by enlarging it in the ratio of 1: 25 The newer dimensions are : Let the new depth be 'd', new length = 1, new width = w 4/d = 1/25, => d= 4 x 25 = 100 Cm 15/w = 1/24,=> w= 15 x 25 = 375Cm 140/L = 1/25, => L= 140 x 25 =,3500Cm = 35m beam? b) Darcy is given á scale diagram of the completed truss bridge. Each vertical beam in the scale diagram is 3.5 cm long. If each beam was drawn by reducing the dimensions of the first beam in a), what scale was used?
Transcribed Image Text:8. Darcy is a welder who has been supplied with diagrams of the rectangular bridge beams that she will make a Pratt truss bridge. a) diagram of a beam that is 4 cm deep, 15 cm wide, and 1.4 m long. Darcy is told to make a Darcy is supplied with a second beam for another project by enlarging the size of the first beam by a scale of 1:25. What would be the measurements of the second The old dimensions of the beam are: Depth = 4Cm Width = 15Cm Length = 1.4M = 140Cm The newer dimensions are made by enlarging it in the ratio of 1: 25 The newer dimensions are : Let the new depth be 'd', new length = 1, new width = w 4/d = 1/25, => d= 4 x 25 = 100 Cm 15/w = 1/24,=> w= 15 x 25 = 375Cm 140/L = 1/25, => L= 140 x 25 =,3500Cm = 35m beam? b) Darcy is given á scale diagram of the completed truss bridge. Each vertical beam in the scale diagram is 3.5 cm long. If each beam was drawn by reducing the dimensions of the first beam in a), what scale was used?
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