I dont know where these points came from.

i d k man, must be the point fairy.

Thanks for the free point

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.

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!