Find A if B = 20° and ? + ? = 120°.
?

?
Remember: The sum of the three angles in any triangle is always 180°.
?
A. A = 60°
B. A = 50°
C. A = 70°
D. A = 100°
E. A = 40°
Answer: E
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Convert the angle to degrees, minutes, and seconds; or to decimal degrees (and round your result to the nearest hundredth of a degree).137°46'58''
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