1 Answer

Bandish Kumar · Answer 1 · 2020-08-27T19:23:38+0000

Answer:

the first one

Explanation:

Since the triangle is right use the sine ratio to find AC

sin40° =
(opposite)/(hypotenuse) =
(AC)/(AB)

sin40° =
(AC)/(10) ( multiply both sides by 10 )

10 sin40° = AC

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