Sib ntaus sib npaug lev ntau thiab tsawg

Qhov loj ntawm ib daim lev kuj tseem tseem ceeb heev. Qhov ntau thiab tsawg kawg kev cob qhia kev kawm. Ntau qhov ntau thiab tsawg muaj 3M x 3m, 2m x 2m, thiab 1.5mx 1.5m. Lub 3M x 3m loj yog qhov feem ntau cov thiab haum rau kev cob qhia kev cob qhia loj. Rau kev cob qhia hauv tsev, me dua li 2m x 2m lossis 1.5mx 1.5m yog qhov haum ntau.