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The walls and ceiling of a hotel room are to be painted. The ceiling is a 20-foot square, and the walls are 8 feet tall.

What is the surface area of the walls and ceiling to be painted? Ignore any doors or windows.

Respuesta :

mhanifa

Answer:

  • 1040 ft²

Step-by-step explanation:

The ceiling is a square of side 20, its area is:

  • A = 20*20 = 400 ft²

The walls have dimensions of 20x8 and there are 4 walls, their area is:

  • A = 4*20*8 = 640 ft²

Total area to be painted is:

  • 400 + 640 = 1040 ft²

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