9514 1404 393
Answer:
(a) 63.4 degrees
Step-by-step explanation:
Any of the trig relations can be used. Since the picture cuts off the value of the hypotenuse, we choose to use the adjacent and opposite sides.
Tan = Opposite/Adjacent
tan(L) = 6/3 = 2
L = arctan(2)
∠L ≈ 63.4°
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Your calculator can do this, too. Be sure the mode is set to "degrees."
