A model is being carved from a block of wood with volume 145 cm3. If 18,900 mm3 of the wood is chiseled away, what is the volume of the resulting model in cm3

2

step-by-step explanation:

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d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.