GMAT Math : DSQ: Calculating the length of an edge of a tetrahedron

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Example Questions

Example Question #1 : Tetrahedrons

Find the length of the edge of a tetrahedron.

Statement 1: The volume is 6.

Statement 2: The surface area is 6.

Possible Answers:

Correct answer:

Explanation:

Statement 1:) The volume is 6.

Write the formula to find the edge of the tetrahedron given the volume.

Given the volume, it is possible to find the edge of the tetrahedron.

Statement 2:) The surface area is 6.

Write the formula to find the edge of the tetrahedron given the surface.

Substitute the surface area to find the edge.

Therefore:

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