发布时间:2025-01-23 04:04:16
教你个方法来换算,①100寸的如果按4:3,当长是4、宽3的情况下,那么斜对角就5,这个小学都学过了,100寸液晶电视指的就是斜对角是100英寸,1英寸≈2.54cm,那么就是100*2.54=254cm,现在对角5等于254cm,那么长4就等于254/5*4=203.2cm,宽3就等于254/5*3=152.4cm;②如果是16:9的那么18.36,这样算下来长就是254/18.36*16=221.35cm,宽就是254/18.36*9=124.5cm
我的小孩是2013年9月16号出生请问什么时候能上小学一年级
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