Answer:
x= 18
Step-by-step explanation:
The question states that ΔABC is similar to ΔDBE. This means that their side lengths will have the same ratio. Side CB on ΔABC is equal to 24 ft if we add 18+6. This means that ΔABC and ΔDBE have a 4:1 ratio since 24/6=4.
With this information, we can conclude that since 4.5*4=18, x=18.
Hope this helps!
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