Flashcards: Intersecting Lines and Angles

Two angles are supplementary and have a ratio of 1:4.  What is the size of the smaller angle?

45^{\circ}\(\displaystyle 45^{\circ}\)

36^{\circ}\(\displaystyle 36^{\circ}\)

18^{\circ}\(\displaystyle 18^{\circ}\)

144^{\circ}\(\displaystyle 144^{\circ}\)

72^{\circ}\(\displaystyle 72^{\circ}\)

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