Is Distance is never negative.

Yes, distance is never negative.

No, distance is a postive if it was a negative number then yes

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.

-2

7 - 9 = -2

reversed:

-2 + 9 = 7