Respuesta :

Answer:

D) 25.5

Step-by-step explanation:

Use basic trigonometry. In this case, use sine.

sin(45) = 18 / x

18 / sin(45) = x

x = 25.4558441227

After you solve this, you will see that 25.5 is close to that.

Hence, the answer to this question is D.

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