SOLUTION: if angle s and angle t are complementary and angle t and angle u are supplementary then angle u is an blank angle

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Question 1107751: if angle s and angle t are complementary and angle t and angle u are supplementary then angle u is an blank angle
Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
if t is complementary to s, then t + s = 90.

since both t and s are less than 90 degrees each, then they are both acute angles.

if t is supplementary to u, then t + u = 180.

since t is less than 90, then u must be greater than 90 and less than 180.

that makes u an oblique angle.