geometry class notes :Polygons and terms
Most of the familiar shapes, such as squares, triangles, rectangles, are part of a
larger subset of shapes called polygons. Polygons are geometric figures that consist
of the union of segments attached at their end
geometry class notes Geometric Surfaces plus terms
So far we've only been studying geometric figures that exist in a plane. Now that we understand
the basics of plane geometry, we can take a brief look into the world of three-dimensional figures
and shape
geometry class note: Angles
An angle is a geometric gure consisting of two rays
with a common endpoint.
The common endpoint is called the vertex of the angle;
in this case the vertex is point A, which is a part of the
ray AB as well as the ray AC. The ang
geometry class note: Constructing Figures and terms
When points, lines, and planes are put together, they
form more complex geometric shapes. In basically
every geometric gure that we'll study, angles are
formed between lines, segments or rays. In this se
geometry class note: Parallel Lines
Because lines extend innitely in both directions, every
pair of lines either intersect once, or don't intersect at
all. The pairs of lines that never intersect are called
parallel lines. Although parallel lines are usua
Geometry class notes: The Building Blocks of
Geometry with terms
Geometry is essentially the study of shapes. In the
world around us, every object we see is a shape of
some kind. Some are simple, like a triangle, square, or
circle. Others seem to be combi
geemetry class netes: planes
Aplane is a beundless surface in space. It has length,
like a line; it alse has width, but net thickness. Aplane
is deneted by writing "plane P", er just writing "P"
There are twe ways te ferm a plane. First, a plane can
be fe
geometry class note: Angle Pairs
Complementary and Supplementary Angles
Special names are given to pairs of angles whose sums
equal either 90 or 130 degrees. A pair of angles whose
sum is 90 degrees are called complementary angles.
Each angle is the other
geometry class note : lines
lines
A line is the innite: set of all points arrayed in a
straight formation. It is difcult to formally dene, but
easy to understand. A line has no thickness, it has only
length, and can be named by any two points on that
line
geometry class note: Dimension
Dimension is a characteristic of all geometric regions,
objects, and spaces. The previous sections have
probably already made you aware of the concept of
dimension. It is roughly the number of directions in
which a region or