$\\triangle abc$ and $\\triangle def$ are similar. find the missing side length.\n(the triangles are not…
$\\triangle abc$ and $\\triangle def$ are similar. find the missing side length.\n(the triangles are not drawn to scale.)
Answer
Explanation:
Step1: 求相似比
相似比为对应边的比值，$\frac{DE}{AB}=\frac{30}{5}=6$
Step2: 计算对应未知边长
未知边对应$\triangle ABC$的$BC$边，长度为$8\times6$ <Expression>$8\times6=48$</Expression>
Answer:
48