The walls, ceiling and floor of a cubic room need to be painted. The edge length for the cube is 3 m. What is the total surface area that will be painted in the room?

27 m²

30 m²

36 m²

54 m²

Question

Lainey Velez

Mathematics

8 July, 21:30

The walls, ceiling and floor of a cubic room need to be painted. The edge length for the cube is 3 m. What is the total surface area that will be painted in the room?

27 m²

30 m²

36 m²

54 m²

+1

Answers (1)

Know the Answer?

Kent · Answer 1

Since the shape is a cube, we know that all sides are the same length and therefore all faces and bases will have the same area.

A cube will have a total of 6 faces/bases.

The area of each one is 3 * 3 = 9 m^2

9m^2 * 6 = 54 m^2

The total surface area to be painted is 54m^2

The walls, ceiling and floor of a cubic room need to be painted. The edge length for the cube is 3 m. What is the total surface area that will be painted in the room?27 m²30 m²36 m²54 m²

The walls, ceiling and floor of a cubic room need to be painted. The edge length for the cube is 3 m. What is the total surface area that will be painted in the room?

27 m²

30 m²

36 m²

54 m²