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Hauv lub neej txhua hnub, peb nquag ntsib A4 daim ntawv. Txawm li cas los xij, koj puas tau txiav txim siab qhov sib npaug zais cia zais hauv daim ntawv zoo li no zoo li? Kab lus no ua kom meej meej ntawm A4 daim ntawv piv thiab txiav txim siab seb nws sib raug rau 9:16 lossis 3: 4 nam piv.
Firstly, qhov tseeb natect piv ntawm A4 daim ntawv
Nws yog ib qho tseem ceeb kom nco ntsoov tias cov nam piv ntawm A4 daim ntawv yog tsis yog 9: 4 tab sis theej cov nam square ntawm kwv yees li ntawm 1.414286, uas sib npaug ntawm cov cag ntoo ntawm 2.
Thib ob, keeb kwm ntawm A4 daim ntawv piv
Cov nam piv ntawm A4 ntawv yog tsis tiv thaiv kev txiav txim tab sis yog ua raws cov koom haum thoob ntiaj teb rau cov ntawv sau ua ke thaum xyoo 1926.
Thib peb, qhov zoo ntawm A4 daim ntawv faib ua feem
1. Kev ntsuas dav dav: Cov nam piv ntawm A4 daim ntawv, ua kom pom tseeb tias thaum muab cov khoom siv ua ke, cov ntawv tshiab tau khaws cov khoom sib npaug. Cov qauv tsim no ua rau pom cov ntaub ntawv ntawm cov ntaub ntawv hla ntau qhov ntau thiab tsawg uas tsis xav tau kev txhim kho, yog li txhim kho kev ua haujlwm ua haujlwm.
2. Cov Cai Pab Cuam: Qhov ntsuas cov cim ntawm A4 daim ntawv me me ces kaum khib thaum cov ntawv txiav hauv cov luam ntoo, yog li kev khaws cov ntaub ntawv.
3. Kev ua pov thawj: qhov loj me ntawm A4 daim ntawv loj ntawm A4 ntawv ua rau nws yooj yim nqa thiab khaws cia, sib ntsib cov neeg xav tau ntau yam hauv ntau cov ntsiab lus.
