120寸电视机长约为265.66厘米,宽约为149.43厘米。 电视的尺寸一般是指电视的屏幕对角线的长度,单位是英寸,1英寸等于2.54厘米。因此,120寸的电视机的屏幕对角线的长度是120×2.54=304.8厘米。由于电视的屏幕一般是16:9的比例,我们可以利用勾股定理,计算出电视的长和宽。120寸的电视机的长约为265.66厘米,宽约为149.43厘米。
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