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Math

QuestionAnswer
Polygon A closed figure made up of line segments
Vertex The point where two or more sides meet
Interior angle Angle formed on the inside of a polygon by two sides meeting at a vertex
Exterior angle Angle formed on the outside of a geometric shape by extending one of the sides past a vertex
Supplementary angles Angles that add up to 180 degrees
Complementary angles Angles that add up to 90 degrees
Polygon exterior angle sum theorem The sum of the exterior angles in a triangle is 180 degrees
Exterior angle theorem The exterior angle at each vertex of a triangle is equal to the sum of the interior angles at the other two verticies
Angle sum triangle theorem The sum of the interior angles of a triangle are 180 degrees
Adjacent Adjoining or next to
Transversal A line intersecting two parallel lines
Obtuse angle Angle greater than 90 degrees
Acute angle Angle less than 90 degrees
Convex polygon A polygon where all interior angles are less than 180 degrees
Concave polygon A polygon where there is atleast one interior angle greater than 180 degrees
Regular polygon A polygon with all equal angles and side lengths
Number of sides on a triangle 3
Number of sides on a quadrilateral 4
Number of sides on a pentagon 5
Number of sides on a hexagon 6
Number of sides on a heptagon 7
Number of sides on a octagon 8
Created by: syddj123
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