Download Presentation On Shapes

Presentation On Shapes
Basic Summary:
On Shapes
By Priyank Shah
What is a Shape ?
• The shape of an object located in some space
is a geometrical sketch of the part of that
space taken by that object, as determined by
its external boundary theorizing from location
and orientation in space, size, and other
properties such as color, content, and material
composition.
More On Shapes
• Modest shapes can be described by elementary
geometry objects such as a set of two or more
points, a line, a curve, a plane, a plane figure (e.g.
square or circle), or a solid figure (e.g. cube or
sphere). Most shapes stirring in the physical world
are complex. Some, such as plant structures and
coastlines, may be so arbitrary as to rebel traditional
mathematical description in which case they may be
analyzed by differential geometry, or as fractals.
Some Shapes
• Square
• In geometry, a square is a regular quadrilateral. This
means that it has four equal sides and four equal
angles (90-degree angles, or right angles). It can also
be defined as a rectangle in which two adjacent sides
have equal length. A square with vertices ABCD
would be denoted ABCD
Some Shapes
• Circle
• A circle is a simple shape of Euclidean
geometry consisting of those points in a plane
that are equidistant from a given point, the
center. The distance between any of the
points and the center is called the radius.
Some Shapes
• Triangle
• A triangle is one of the basic shapes of
geometry. A triangle is a polygon with three
corners or vertices and three sides or edges
which are line segments (described in next
slide) . A triangle has vertices A, B, and C is
denoted ABC.
Some Shapes
• Line or straight line was introduced by early
mathematicians to represent straight objects with
negligible width and depth. Lines are an invention of
such objects
• Line segment is bounded by two distinct end points
and contains every point on the line between its end
points. Depending on how the line segment is defined,
either of the two end points may or may not be part of
the line segment. Two or more line segments have
some of the same relationships as lines, like being
parallel, intersecting, or skew.
Some Shapes
• Rectangle
• A rectangle is any quadrilateral with four right
angles. Another name for rectangle is
equiangular quadrilateral, since equiangular
means that all of its angles are same like 90
degrees (360°/4 = 90°). It can also be defined
as a parallelogram containing a right angle. A
rectangle with sides ABCD would be denoted
as ABCD.
Source
• http://en.wikipedia.org/wiki/Shape