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[unit 4}

Math

QuestionAnswer
Ray A part of a line that has one endpoint & extends without end in one direction.
Angle A figure formed by two rays or line segments with a common endpoint.
Line A straight path that goes on forever in opposite directions.
Perpendicular Lines, line segments, or rays are perpendicular if they form right angles.
Parallel The same distance apart at every point.
Oblique Lines that are not parallel or perpendicular.
Intersect To cut or divide by passing though or across.
Protracter A tool used to measure angles.
Supplementary angles Angles having the sum of 180 degrees.
Complementary angles Angles having the sum of 90 degrees.
Opposite angles When two lines intersect
Vertical angles Pairs of opposite angles formed by intersecting lines
Polygon A closed figure with sides made of straight line segments.
Congruent Exactly the same size and shape.
Isosceles Triangle A triangle with at least two congruent sides.
Equilateral Having all equal sides.
Scalene Triangle A triangle with no equal sides.
Acute Triangle A triangle with three acute angles.
Obtuse Triangle A triangle with one obtuse angle.
Right Triangle A triangle with one right angle.
Right Trapezoid A trapezoid with at least one right angle.
Circle A plane figure that forms a closed path so that all the points on the path are the same distance from a point called the center
Reflex Angle An angle greater than 180 degrees.
Created by: 00021497
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