Question

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ANYTHING HELPS

Answer 1

Answer: AB = 8.77 units

Explanation:

We will use the trigonometric function sine. I will use x for ?. Sine uses the opposite side over the hypotenuse.

Given:

sin(20) =
`(3)/(x)`

Multiply both sides of the equation by x:

xsin(20) = 3

Divide both sides of the equation by sin(20):

x =
`(3)/(sin(20))`

Compute:

x = ? = AB = 8.77