Answer:
Explanation:
plural noun: supplementary angles
either of two angles whose sum is 180°.
Complementary vs Supplementary · "C" of Complementary is for "Corner" right angle (a Right Angle), and · "S" of Supplementary is for "Straight" (180° is a straight ...
Answer is a
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A. It signals that Earth and Mars have something in common.
Im so sorry if im wrong this just made more sense to me