Answer:
The answer is 78.5° .................
78.5°
Explanation:
For <A, AC is the adjacent leg.
AB is the hypotenuse.
The trig function that relates the adjacent leg to the hypotenuse is the cosine.
cos A = adj/hyp
cos A = 3/15
cos A = 1/5
A = cos^-1 0.2
A = 78.5°
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