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I need help with this ion understand it

I need help with this ion understand it-example-1
User Psyched
by
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1 Answer

9 votes

Answer:

c. 30

Explanation:

Reference angle =
/theta = ?

Hypotenuse = 23

Adjacent side = 20

Thus, applying CAH:


Cos(/theta) = (adj)/(hyp)


Cos(/theta) = (20)/(23)


/theta = cos^(-1)((20)/(23))


/theta = 29.5918458 ≈ 30° (nearest degree)

User Ejaz Karim
by
6.5k points