Question 491557
a = longest
b = middle
c = shortest
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a = 2x
b = x + 14
c = x
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2x + x + 14 + x = 180
4x + 14 = 180
4x - 166
x = 41.5 degrees.
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a = 83 Degrees
b = 55.5 Degrees
c = 41.5 Degrees
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83 degrees + 55.5 degrees + 41.5 degrees 
This does check.
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Cleomenius