Solving for a Missing Dimension

Locating the 3rd Dimension

The GED® test tends towards complex problems. Don't be surprised if the volume and surface area problems you get on your test require you to work backwards; they give you the surface area or volume and expect you to solve for a missing dimension.

STEP 1: WATCH THE VIRTUAL CLASS VIDEO AND TAKE NOTES

Make sure to note the following:

To solve for a missing dimension:

Locate the appropriate formula from the GED® formula sheet
Substitute any known values into the formula
Use your algebra skills to solve for the remaining variable

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