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Definition ProjectMallory Collier 5th hour Geometry
Acute Angle
The measure of an angle with a measure between 0° and 90° or with less than 90° radians.
Pizza
Collinear Points
A set of points that lie in a straight line.
Easter Island
Circle
The set of all points in a plane that are fixed distance from a point called the center of the circle.
Baseball
Cone
A three dimensional shape with only one vertex, having a circular base.
Ice cream cone
Cyclinder
A shape with a parallel circle and each end and joined by a curved surface.
Candles
Line
An undefined term in geometry, a line is a straight path that has no thickness and extends forever.
Street
Angle
A figure formed by two rays with a common endpoint.
Street Intersectoins
Point
A precise location or place on a plane, usually presented by a dot.
A map
Obtuse Angle
An angle having a measurement of more than 90
A hand fan
Perpendicular lines
Two lines or line segments intersect and form right angles.
Windows
Plane
When a set of points joined together form a plane, the plan can extend without end in all directions.
The twin tower site
Prism
A solid object that has two identical ends and all flat surfaces.
A tissue box
Pyramid
A shape where the base is a polygon and the sides are triangles that join at the top.
The Egyptian pyramids
Ray
A straight line with one end point, the line extends infinitely.
Power lines
Parallel lines
Two lines on a plane that never meet, they are always the same distance apart.
Train tracks
Parallelogram
A quadrilateral that has both sets of opposite sides that are parallel.
Building architectures
Rectangle
A parallelogram that has four right angles.
A carpet
Right Angle
An angle that is equal to 90
A bird house
Sphere
A solid shape that resembles a ball, every point on the surface of the shape is the same distance from the center.
The Earth
Square
A four sided flat shape with equal 90 angles.
a handicapped sign
Triangle
Three sided polygon.
The pool table ball set up
Vertex
A point of intersection that where two or more rays meet, often called a corner.
A spider web
Line segment
A straight path that has a beginning and an end.
A cross walk
Trapezoid
A quadrilateral with exactly two parallel sides.
A popcorn holder
