關于放大一張復印紙的數(shù)學題
一道英文原體,抱歉我不太回翻譯,A copier can be set to enlarge an image to as much 200% of the original or shrink an image to as little as 20% of the original.If a shape is known to have perimeter of 8 inches and the copier is set to 125%,by what factor will the area increase when the image is coped?(Assume that when a copier is set to 125%,any length in the copy is 125% of the corresponding length in the original.Recall that if you increase 5 by a factor if 3 you get 15.)
我不是要翻譯，不好意思，讓大家誤會不好意思，這題問得是找factor，直接乘我是知道的就是找這個factor不知到，希望大家?guī)蛡€忙。