A blueprint for a building has a scale of 1:40. A wall in the blueprint is 3.5 inches tall. What is the height of the actual wall?

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Mathematics

Miriam Walters

19 July, 19:42

A blueprint for a building has a scale of 1:40. A wall in the blueprint is 3.5 inches tall. What is the height of the actual wall?

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Coby Chaney · Answer 1

1:40 means that the size of the object in the blue print is 40 times smaller than it will be when built. So 3.5 x 40 is 140 inches high. That can then be converted to feet 140 inches is 11.6667 feet. The. 6667 can be converted to inches by multiplying it by 12,.6667 x 12 is 8.0. This means that the wall will be 11 feet and 8 inches high. Or just 140 inches.