The ASVAB Tutor Presents Answer to Question on Surface Area of Cube

Mathematics Knowledge

Yesterday I presented a question on surface area.

What is the surface area of a cube if one side equals 2?

Surface area is one of the many formulas that I remind my students to learn for the ASVAB.  Mathematics Knowledge is the section of the test that involves learning formulas for geometry.  I remind my students of the importance of knowing how to find perimeter, circumference, area, surface area, and volume.  Knowing the formulas makes a big difference in the score on the Mathematics Knowledge section of the test.  Today’s question asks about the surface area of a cube.  A cube is a square box.  All six sides have the same dimensions.

Do you know the formula for the surface area of a cube?

Surface area of a cube = 6 x side x side = 6s²

If one side is 2, plug 2 into the formula

SA = 6s² = 6(2)² = 6(4) = 24

The surface area of this cube is 24.

Did you know how to solve this problem?