alleryStart learning →Two angles on a straight line are x and (2x + 30) degrees. What is the larger angle?
A100°
B110°
C120°
D130°
Answer & Solution
Correct answer: D. 130°
The two angles add to 180, so 3x plus 30 is 180, x is 50, and the larger angle is 2 times 50 plus 30, which is 130 degrees.
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