Can anyone tell me the statements and reasons for this?

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Ответ:

ChaosMind

07.09.2022

Mathematics

BC = 17 $\sqrt{2}$ ft

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin45° = $\frac{1}{\sqrt{2} }$ , then

sin45° = $\frac{opposite}{hypotenuse}$ = $\frac{AC}{BC}$ = $\frac{17}{BC}$ = $\frac{1}{\sqrt{2} }$ ( cross- multiply )

BC = 17 $\sqrt{2}$ ft

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