geometry terms. line a series of points that extends in two opposite directions without end
TRANSCRIPT
Geometry TermsGeometry TermsGeometry TermsGeometry Terms
line• A series of points that extends in
two opposite directions without end.
Line segment
• Part of a line that has 2 endpoints.
Intersecting lines
• Lie in the same plane and have exactly one point in common.
ray
• A part of a line that has one endpoint.
point
• A location that has no size.
Parrallel lines
• Lines in the same plane that never intersect.
Plane
• A flat surface with no thickness that extends with no end in all directions on the surface.
Triangle
• A polygon with 3 sides.
Quadrilateral
• A polygon with 4 sides.
Pentagon
• A polygon with 5 sides.
Hexagon
• A polygon with 6 sides.
Heptagon
• A polygon with 7 sides.
Octagon
• A polygon with 8 sides.
Nonagon
• A polygon with 9 sides.
Decagon
• A polygon with 10 sides.
Right Angle
• An angle measuring ____.
Perpendicular Lines
• Lines that intersect to form right angles.
Vertex
• The point of intersection of two sides of an angle.
Degrees
• Angles are measured in units called degrees.
Acute Angle
• An angle with a measurement between ____ and ____.
Obtuse Angle
• An angle with a measurement between ____ and ______.
Straight Angle
• An angle with a measurement of ______.
Rectangular Prism
• A solid having two opposite ends that are parallel and are the same size and shaped as a rectangle.
• EX: shoe box, cereal box
Cube
• Rectangular prism whose sides are all squares.
• EX: dice
Triangular Prism
• A solid having two opposite sides that are parallel and are the same size and shaped as a triangle.
• *** BASES ARE TRIANGLES***
Cone
• A 3-dimensional figure with one circular base and one vertex.
• EX: ice cream cone, birthday hat
Cylinder
• A 3-dimensional figure with two congruent parallel bases that are circles.
• EX: cans of food, paper towel roll
Sphere
• A solid that has a boundary consisting of all points at a given distance from a point that is the center.
• EX: basketball, globe
Equilateral Triangle
• A triangle with 3 congruent sides.
Isosceles Triangle
• A triangle with 2 congruent sides.
Scalene Triangle
• A triangle with no congruent sides.