210 degrees.
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210 degrees
Oh, dude, let's break it down. So, the supplement of an angle means 180 degrees minus the angle, and the complement is 90 degrees minus the angle. When you add them together, you get 210 degrees. So, you just set up the equation (180 - x) + (90 - x) = 210 and solve for x, which is the measure of the angle. Math, man, it's like a puzzle but with numbers.
Suppose the measure of the angle is x then its supplement is 180 - x x = 180 - x + 30 = 210 - x 2x = 210 => x = 105 degrees (supplementary angle = 75)
Exterior angle of any plane figure total 360 degrees, so 360 - (110 + 100) ie 360 - 210 = 150