#### Answer

297 $cm^{2}$

#### Work Step by Step

Perimeter = 7 cm + 8 cm + 12 cm
Perimeter = 27 cm
Lateral area = perimeter $\times$ h
Lateral area = 27 cm $\times$ 11 cm
Lateral area = 297 $cm^{2}$

Published by
Brooks Cole

ISBN 10:
9781285195698

ISBN 13:
978-1-28519-569-8

297 $cm^{2}$

You can help us out by revising, improving and updating this answer.

Update this answerAfter you claim an answer you’ll have **24 hours** to send in a draft. An editor
will review the submission and either publish your submission or provide feedback.