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Geometry In The Real World
Andie AlfordBlock: 2
Point
An undefined term in geometry, it names a location and has no size.
Line (Segment)
An undefined term in geometry, a line is a straight path that has no thickness and extends forever.
Plane
An undefined term in geometry, it is a flat surface that has no thickness and extends forever.
Angle
A figure formed by two rays with a common endpoint.
Perpendicular Lines
Lines that intersect at 90° angles.
Parallel Lines
Lines in the same plane that do not intersect.
Right Triangle
A triangle with one right angle.
Hexagon
A six-sided polygon.
Square
A quadrilateral with four congruent sides and four right angles.
Rectangle
A quadrilateral with four right angles.
Trapezoid
A quadrilateral with exactly one pair of parallel sides.
Parallelogram
A quadrilateral with two pairs of parallel sides.
Circle
The set of points in a plane that are a fixed distance from a given point called the center of the circle.
Cylinder
A three-dimensional figure with two parallel congruent circular bases and a curved lateral surface that connects the bases.
Sphere
The set of points in a space that are a fixed distance from a given point called the center of the sphere.
Cone
A three- dimensional figure with a circular base an a curved lateral surface that connects the base to a point called the vertex.
Rhombus
A four-sided shape where all sides have equal length. Also opposite sides are parallel and opposite angles and equal.
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