Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

geometry

No description
by

Ashley Rowland

on 6 May 2010

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of geometry

Image: The new figure that results from the tranformation of a figure in a plane. Geometry terms Preimage: The original object before it is transformed. Transformation: The operation that maps, or moves, a preimage onto an image. Reflections
Rotations
Translations Isometry: A transformation that keeps the same size and shape of a figure but moves it to a new location. Reflection: A type of transformation that uses a line that acts like a mirror, called the line of reflections, with an image reflected in the line. Line of reflection: The line that is reflected over in a reflection Line of symmetry: The imaginary line where you could fold the image and have both halves match perfectly. Rotation: A type of transformation in which a figure is turned about a fixed point. http://www.hstutorials.net/math/geometry/definitions/rotation.htm Center of rotation: The fixed point that a figure is rotated around. Angle of rotation: The angle formed when rays are drawn from the center of rotation to a point and its image. Rotational symmetry: A figure in the plane has rotational symmetry if the figure can be mapped onto itself by a rotation of 180 degrees or less The image can be rotated some amount and it still looks the same Translation: A transformation in which an image is moved without loosing its proportions. Vector: A quantity that has both direction and magnitude, and is represented by an arrow drawn between two points. Initial point: The starting point of a vector. Terminal point: The ending point of a vector. Component form: The form of a vector that combines the horizontal and vertical components of the vector. Glide reflection: A transformation in which every point is mapped by two steps; a translations and a reflection in a line parallel to the direction of the translation. Composition of transformations: The result when two or more transformations are combined to produce a single transformation. (Glide reflection) Frieze pattern (border pattern): A pattern that extends to the left and right in such a way that the pattern can be mappped onto itself by horizontal translation. Dialation: A type of transformation transformation in which a figure is enlarged or reduced using a scale factor ≠ 0, without altering the center. Scale factor: The ratio of the lengths of two corresponding sides of two similar palygons. http://www.cut-the-knot.org/Curriculum/Geometry/GlideReflection.shtml Ashley Rowland
Josh Mullis
Full transcript