Calculate volume using double integrals

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SUMMARY

The volume of a barn with a rectangular base measuring 20 ft by 40 ft, vertical walls of 30 ft at the front and 40 ft at the rear, can be calculated using double integrals. The barn's flat roof allows for the application of trapezoidal prism concepts to simplify the integration process. By treating the barn as a trapezoidal prism, one can effectively set up the double integrals needed to compute the volume accurately.

PREREQUISITES
  • Understanding of double integrals in calculus
  • Familiarity with trapezoidal prisms and their properties
  • Knowledge of setting up integrals in a Cartesian coordinate system
  • Basic skills in mathematical problem-solving and geometry
NEXT STEPS
  • Study the application of double integrals in volume calculations
  • Learn how to model three-dimensional shapes as prisms
  • Explore examples of trapezoidal prisms in calculus
  • Practice setting up and solving double integrals for various geometric shapes
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Students and professionals in mathematics, engineering, and architecture who are interested in applying calculus to real-world volume calculations.

leslie8167
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What is the volume of a barn that has a rectangular base 20 ft by 40 ft, vertical walls 30 ft high at the front (which we assume is on the 20-ft side of the barn), and 40 ft high at the rear? The barn has a flat roof. Use double integrals to compute the volume.
 
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leslie8167 said:
What is the volume of a barn that has a rectangular base 20 ft by 40 ft, vertical walls 30 ft high at the front (which we assume is on the 20-ft side of the barn), and 40 ft high at the rear? The barn has a flat roof. Use double integrals to compute the volume.
Didn't you read the information you were supposed to have read when you signed up for this forum?

You try, yourself, first. Show us what you have tried to do first and then we will help you.
 
I know this may slightly break the rules, but I will give you a hint: pretend the barn is a trapezoidal prism (an odd block, if you will). Put the floor/base along the plane that is created by the x and y-axis (the roof will extend in the z direction). This will *help* set up the double integrals...
 

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