How do I even begin to start with this??

[lea]

The cost to air condition a building can be estimated by using a volume calculation.

If a building is in the shape of a rectangular prism with a length of 60 feet, a width of 45 feet, and the angle of elevation to the top of the building is 58' from a point on the ground 30 feet away from the base of the building. The owner of the building is considering replacing the old cooling system and he wants to determine the cost savings. If the current cost to cool the building is $389 per day and the new system is estimated to cost $.0025 per cubic foot per day, how much would the building owner save per day in cooling costs if he replaces the old system with the new more efficient system?

 

[Deleted member 4993]

The cost to air condition a building can be estimated by using a volume calculation.

If a building is in the shape of a rectangular prism with a length of 60 feet, a width of 45 feet, and the angle of elevation to the top of the building is 58' from a point on the ground 30 feet away from the base of the building. The owner of the building is considering replacing the old cooling system and he wants to determine the cost savings. If the current cost to cool the building is $389 per day and the new system is estimated to cost $.0025 per cubic foot per day, how much would the building owner save per day in cooling costs if he replaces the old system with the new more efficient system?

First calculate the height of the building from:

the angle of elevation to the top of the building is 58' from a point on the ground 30 feet away from the base of the building.

Then calculate the volume of the building - then calculate the new cooling cost -,then make your decision.

 

[HallsofIvy]

The cost to air condition a building can be estimated by using a volume calculation.

If a building is in the shape of a rectangular prism with a length of 60 feet, a width of 45 feet, and the angle of elevation to the top of the building is 58'

What do you mean by this? 58' surely is not 58 "feet" because that is not an angle measure. But 58 minutes of angle is very very small. I suspect you mean 58 degrees.

from a point on the ground 30 feet away from the base of the building. The owner of the building is considering replacing the old cooling system and he wants to determine the cost savings. If the current cost to cool the building is $389 per day and the new system is estimated to cost $.0025 per cubic foot per day, how much would the building owner save per day in cooling costs if he replaces the old system with the new more efficient system?

Drawing a picture, you should see that the height of the building as one leg of a right triangle and the distance from the building to the angle, the other leg of the right triangle, 30 feet and the angle 58 degrees. What trig function has that ratio?

Once you know the height of the building, multiply it by width and length (60 and 45) to get the volume of the building in cubic feet.