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### 9 Cards in this Set

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 Acute Angle An angle whose measure is between 0 and 90 degrees. Adjacent angles A pair of angles that share a vertex and a side. These angles are side by side. You can remember this because the term adjacent means "side by side." Complimentary angles angles whose measures add up to 90 degrees. You can remember these angles make a right angle because their shape is similar to the shape of a corner of a sheet of paper. Complementary starts with co- and so does corner. Obtuse angle An angle whose measure is between 90 and 180 degrees. Right angle An angle whose measure is exactly 90 degrees. Straight Angle An angle whose measure is exactly 180 degrees. Supplementary angles angles that add up to 180 degrees. You can remember this because a 180 degree angle is a straight angle. Straight angle starts with s and so does supplementary. Vertical Angles _______ _______are formed when two lines intersect. The interesting thing is that ________ _________ are congruent; they are equal to each other. Linear pair A _____ _____ is created by two angles that are adjacent and supplementary.