Write the Word or Phrase That Best Completes Each Statement $V$

Essay

Write the word or phrase that best completes each statement or answers the question.
-The volume $V$ of a square-based pyramid with base sides s and height $h$ is $V = \frac { 1 } { 3 } s ^ { 2 } h$ . If the height is half of the length of a base side, express the volume $V$ as a function of s.