How to find the surface area of a cube

Practice Questions

PSAT Math › How to find the surface area of a cube

Questions
10
1

A certain cube has a side length of 25 m. How many square tiles, each with an area of 5 m2, are needed to fully cover the surface of the cube?

2

If a cube has an area of , then what is the surface area of this cube?

3

What is the surface area of a cube with a volume of 1728 in3?

4

A company wants to build a cubical room around a cone so that the cone's height and diameter are 3 inch less than the dimensions of the cube. If the volume of the cone is 486π ft3, what is the surface area of the cube?

5

You have a cube with sides of 4.5 inches. What is the surface area of the cube?

6

A room has dimensions of 18ft by 15ft by 9ft. The last dimension is the height of the room. It has one door that is 3ft by 7ft and two windows, each 2ft by 5ft. There is no trim to the floor, wall, doors, or windows. What is the total exposed wall space?

7

A room has dimensions of 23ft by 17ft by 10ft. The last dimension is the height of the room. It has one door that is 2.5ft by 8ft and one window, 3ft by 6ft. There is no trim to the floor, wall, doors, or windows. If one can of paint covers 57 ft2 of surface area. How many cans of paint must be bought to paint the walls of the room.

8

A cube has a surface area of 24. If we double the height of the cube, what is the volume of the new rectangular box?

9

If the volume of a cube is 216 cubic units, then what is its surface area in square units?

10

A cube has a surface area of 10m2. If a cube's sides all double in length, what is the new surface area?

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