It would help if you would proofread your work before you post it.
Add 126 to whichever dimension is the length, and then add 2 times it to 2 times the other dimension.
sid has a rectangular wooden deck that measures 348 centimeters by 792 centimeters. He build an extension that makes it 126 centimeters longer. What is the perimeter of the deck now?
3 answers
You simply add 348x2 + 792x2 + 126x2
2532