Size 8m is size 40m

SketchUp for Web
,
1

size 8m model is size 40m

2

And your question might be…?
Do you want to resize an existing model?

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resize an existing model 1/2 8m

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Are these dress sizes?

5

No it isn’t.

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Please use your words and explain exactly what the problem is.
Best done with screenshots and the model attached so we can actually help you.