Sin 32 = opposite / hypotenuse
sin 32 = x / 7
sin A = 15/26
sin A = .577
A = 35.23 agree choose C
For question 1, we need a trig function that equals opposite over hypotenuse.
Tangent = OPP/HYP
To find x we use CHOICE (C).
For question 2, we are looking for angle A.
We use tan(A) = OPP/HYP
tan(A) = 15/26
Since we are looking for an angle, we MUST use the inverse key. Keep that in mind!
Let arc = INVERSE
Then tanarc = the inverse of tangent
A = tanarc(15/26)
A = 29.98163937
When we round the decimal number above to the nearest degree, we are really rounding the whole number (our 29) to the nearest tens place.
What is 29 rounded to the neaesrt tens place?
Final Answer: 30....Choice (B)
I made a mistake.
sine = OPP/HYP NOT tangent.
It was a simple mistake.
Damon got it right.
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