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# Geometry

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by

## Chrysteena Fay

on 16 October 2013

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#### Transcript of Geometry

Geometry
Digital Photography Project
Right Angle:
Photo BY: KEAH Photography
A 90 degree angle
Acute Angle:
An angle that has measure less than 90°
Photo By: Ragan Faulkner
Photo By: Kenton Smith
Rectangle:
congruent angles (all 90°).
Diameter:
A line segment between two points on the circle or sphere which passes through the center.
Obtuse
Angle:
An angle that has measure more than 90° and less than 180°.
Parallel:
distinct coplanar lines that
do not intersect
Perpendicular:
two lines that meet at
a 90 degree angle
Supplementary
Angles:
Two angles that
Complementary
Angles:
Two acute angles
Reflection
Symmetry:
A transformation in which
a figure is reflected across a
line, creating a mirror image
http://www.flickriver.com/photos/jbuddenh/307136734/
Rotation
Symmetry:
A transformation in which
a figure turns around a
fixed center point
Convex:
Photo: Chrysteena Fay
A geometric figure
with no indentations
Photo: Chrysteena Fay
Concave:
A shape or solid which has
an indentation or "cave"
Trapezoid:
A quadrilateral which has a pair of
opposite sides which are parallel
Photo by: Chrysteena Fay
Rhombus:
A parallelogram with
four congruent sides
Square:
congruent sides and four
congruent angles (all 90°)
Photo By: Chrysteena Fay
A line segment between the center
and a point on the circle or sphere
Interior
Angle:
An angle on the interior
of a plane figure.
KEAH Photography
Straight Angle:
A 180° angle
KEAH Photography
Edge:
One of the line segments making
up the framework of a polyhedron;
faces intersect each other
Photo By: Chrysteena Fay
Cone:
A three dimensional
figure with a single
base tapering
to an apex
www.livingonehanded.com/?attachment_id=756
http://amustneed.com/gigantic-beach-ball/
Sphere:
A three dimensional solid
consisting of all points equidistant
from a given point
http://www.starbeaconproducts.net/index.php?route=product/product&product_id=1513
Cylinder:
A three-dimensional
geometric figure
with parallel congruent bases
http://www.desktops4wallpaper.com/photos-gallary/nature-wallpaper/city-town-wallpapers/france-pyramid-at-louvre-museum-paris-771.html
Pyramid:
a polygonal base and lateral
faces that taper to an apex
Photo By: Chrysteena Fay
Parallelogram: