на 72%
a- 100% h-100%
x-10% y-20%
xy=(a-(a*10)/100)(h-(20*h/100))=72*ah/100, отсюда
ah= 100%
xy=72%
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на 72%
a- 100% h-100%
x-10% y-20%
xy=(a-(a*10)/100)(h-(20*h/100))=72*ah/100, отсюда
ah= 100%
xy=72%