What’s the answer to this i really need help

x = 159°

Step-by-step explanation:

x + 29° = 180° (Because they form a linear pair)

=> x = 180° - 29°

=> x = 159°

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the correct answer is 45x

9×5=45 then add the x

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.