设长,宽,高分别为a,b,c
2(a+b)=265-5=260
2(b+c)=225-5=220
2(c+a)=285-5=280
则4(a+b+c)=760,c=60,a=80,b=50,
v=60*80*50=240000立方厘米=0.24立方米
设长,宽,高分别为a,b,c
2(a+b)=265-5=260
2(b+c)=225-5=220
2(c+a)=285-5=280
则4(a+b+c)=760,c=60,a=80,b=50,
v=60*80*50=240000立方厘米=0.24立方米