设CD=x,则BC=x/0.6,
由勾股定例(别告诉我你没学过……)得:
CD*CD+BC*BC=斜边×斜边=64×64
有x*x+x*x/0.36=64*64
x*x=64*64/(1+1/0.36)
x=根号下64*64/(1+1/0.36)
=64*根号下(0.36/1.36)
约等于32.93cm
设CD=x,则BC=x/0.6,
由勾股定例(别告诉我你没学过……)得:
CD*CD+BC*BC=斜边×斜边=64×64
有x*x+x*x/0.36=64*64
x*x=64*64/(1+1/0.36)
x=根号下64*64/(1+1/0.36)
=64*根号下(0.36/1.36)
约等于32.93cm