WGU D127 Module 1: Math for Elementary Educators Study Guide | Latest 2023/24 | Updated & Verified | Guaranteed Success
What does the arrow on a ray signify? - It extends indefinitely Acute angles measure - less than 90 degrees Right angles measure - exactly 90 degrees Obtuse angles measure - greater than 90 degrees, but less than 180 degrees Straight angles measure - exactly 180 degrees Reflex angles measure - greater than 180 degrees Supplementary angles are - two angles whose sum is equal to 180 degrees Complementary angles are - two angles whose sum is equal to 90 degrees Two angles are complementary. If one angle measures 30º, the other angle measures - 60° (90°−30°= 60°) Polygon is a - closed figure with at least three straight sides. Vertex is a - point where two line segments meet to form an angle Regular polygon is a - polygon with equal sides and equal angles
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