The faces that must be included are two faces that measure 5ft*3ft = 15 ft², another two faces that measure 4ft*3ft = 12ft², and one face that measures 5ft*4ft = 20ft².
what faces are included in the calculation?
For the pool, we need to consider the four lateral face and the bottom face . (not the top, as it is a hole actually).
So if we have:
- length = 5ft
- width = 4ft
- hegith = 3ft
Then we have two faces that measure 5ft*3ft = 15 ft², another two faces that measure 4ft*3ft = 12ft², and one face that measures 5ft*4ft = 20ft².
If you want to learn more about rectangular prisms:
https://brainly.com/question/1310421
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