Question

structure in the diagram, $jklm\sim efgh$. find the ratio of the perimeters of $jklm$ to $efgh$.
the ratio is $\square:\square$.

Explanation:

Step1: Identify corresponding sides

Corresponding sides: $JK = 20$, $EF = 11$ (or $JM=30$, $HG=3$)

Step2: Calculate similarity ratio

Ratio of $JKLM$ to $EFGH$: $\frac{JK}{EF} = \frac{20}{11}$

Step3: Relate to perimeter ratio

For similar figures, perimeter ratio = similarity ratio.

Answer:

$20:11$