两种情况:
(1)腰与底边的比是5:2,则 腰长=5x48/(5+5+2)=20cm ,底边长=2x48/(5+5+2)=8cm
(2)底边与腰的比是5:2,则 腰长=2x48/(5+2+2)=32/3cm ,底边长=5x48/(5+2+2)=80/3cm
两种情况:
(1)腰与底边的比是5:2,则 腰长=5x48/(5+5+2)=20cm ,底边长=2x48/(5+5+2)=8cm
(2)底边与腰的比是5:2,则 腰长=2x48/(5+2+2)=32/3cm ,底边长=5x48/(5+2+2)=80/3cm