Question

I need help with this please!!

Answer 1

dock = 90°

boat = 40°

Thus the other angle equal 50°

I call that angle JJ

So ; JJ = 50°

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According to the case of the Sine :

`(rope)/( \sin(50) ) = (25.17)/( \sin(40) ) \\`

`(rope)/( \cos(40) ) = (25.17)/(0.643) \\`

`(rope)/(0.766) = (25.17)/(0.643) \\`

`rope = 0.766 * (25.17)/(0.643)`

`rope = 0.766 * 39.14`

`rope = 30.37`

`rope = 30`

And we're done...

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