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A.V. #2

Achievement Review Vocabulary #2

attributes A common characteristic, such as color, size, or shape
perpendicular Lines, rays, line segements, and planes that meet at right angles.
reflection The mirror image of a figure about a line of symmetry.
regular polygon A figure with all sides having the same length. A polygon with all sides congruent and all angles congruent.
rotation A change in location of a figure by moving it around a given point. A turning motion about a point.
translation Also known as a slide. The figure is moved in a straight path.
acute triangle A triangle that has 3 acute angles which are less than 90 degrees.
obtuse triangle A triangle that has 1 obtuse angle which is greater than 90 degrees
right triangle A triangle that has 1 angle which is exactly 90 degrees.
equilateral triangle A triangle that all three sides are congruent.
isosceles triangle A triangle that has at least two congruent sides.
scalene triangle A triangle that has no congruent sides.
vertex (vertices) The point where the rays of angle, sides of polygon, or the edges of a polyhedron meet.
Created by: arausch1