Your question is how big a stage a shed with a width of 6m can build. Here you only gave a width condition, not the length of the shed. The shed length is temporarily 10m. Then the stage area that can be built is 6× 10=60_.

The word "Peng" here is a typo and should be changed to "shed".

This is a simple application of a math problem. The above is my answer to this problem. I hope it will help you.