By martha
GEOMETRIC FIGURES
Arc of a circle
A connected section of the
circumference of a circle .
Nonagon
A polygon with nine sides
Similar
Identical is a shape, although not necessary
the same size
Right pyramid
A pyramid that has its apex aligned
directly above the center of the
ebase
Rectangle
A box shape on a plane. Formally a
rectangle is a quadrilateral with four
congruent angles
Sphere
A three dimensional
consisting of all points
equidistant from a given
point. this point is the center
of the sphere.
Golden spiral
A spiral that can be draw in a golden
rectangle as shown below. The
figure forming the structure for the
spiral is made up entirely squares
and golden rectangles.
Kite
A quadrilateral whit two
pairs of adjacent sides that
are congruent. Note that
the diagonals of a kite or
perpendicular.
Reflection
A transformation in witch a geometric
figure is reflected a line creating figure
is reflected a line creating a mirror
image. That line is called the axis
reflection
Horizontal
Perfectly flat and level.
Center of rotation
In a rotation the point that does not move. The
rest of the plane rotates around this one fixed
point.
Cone angle
The angle remaining in a
sheet of paper after a
sector has been cut out so
that the paper can be
rolled into a right circular
cone.
Tessellate
To cover a plane whit identically shaped
pieces witch do not overlap or leave blank
space.
Right cylinder
A cyli9nder witch has
bases aligned one
directly above the other.
The bases needed not
be circles.
Oval
An egg shaped curve
Locus
Set that forms a
graph
Transversal
A line that cuts across a set of
lines or the sides of a figure.
Trapezoid
A quadrilateral witch
has a pair of opposite
sides witch are called
the bases and the
other two sides are
called the legs
Altitude of a pyramid and
height
The distance from the pex
to the base of a pyramid.
Formally the shortest line
segment between the apex
of a pyramid and the base
Double con
A geometric figure
made up of two rigth
circular cones placed
apex .