Can anyone please tell me which formula to use for the following question: an office is 16 ft long, 12 ft wide & walls are 10 ft high. Floor, ceiling & door won't be painted & there are no ceilings. The door opening measures 3ft x 8ft. Which formula should I use? SA of a rectangle or SA of a rectangular prism? Thanks for any suggestions!

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anonymous · Answer

@LegendarySadist

anonymous · Answer

@physicsstudies

anonymous · Answer

@physicsstudies

anonymous · Answer

Well what are you solving for, exactly?

anonymous · Answer

the square feet. I need to find out how much paint I would need if a can of paint covers only 100 ft.Thanks!

anonymous · Answer

Well I wouldn't really use the SA formula. Just do 2HW + 2HL - 3*8

anonymous · Answer

It makes sense now! Thank you so much!