ANSWER
44 cm
EXPLANATION
The perimeter of a polygon is the sum of the side lengths. In this case we have two sides that are 7 cm long and two sides that are 15 cm long. The perimeter is:
[tex]\begin{gathered} P=7\operatorname{cm}+7\operatorname{cm}+15\operatorname{cm}+15\operatorname{cm} \\ P=14\operatorname{cm}+30\operatorname{cm} \\ P=44\operatorname{cm} \end{gathered}[/tex]
