SOLUTION: What is the reference angle for 5pi/8 and -490 degrees?

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Question 689720: What is the reference angle for 5pi/8 and -490 degrees?
Answer by lwsshak3(11628) About Me  (Show Source):
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What is the reference angle for 5pi/8 and -490 degrees?
5π/8=1.9635 radians in quadrant II
reference angle=π-1.9635≈1.1781
..
-490º+360º=-130º in quadrant III
reference angle=-130+180=50º