LINEAR PARKGeometry in the Real World

By Megan HenrySykes; block 5

2009

POINT• Definition:

Names a

location and

has no size.

Represented

by a dot

PLANE• Definition:

Flat surface

that has no

thickness

and extends

forever.

. . .

A B

R C

LINE SEGMENT

• Definition:

Part of a line

consisting of

two points

and all the

points

between

them.

A

B

ANGLE• Definition:

A figure formed

by two rays

or sides with

a common

endpoint

called a

vertex

PERPENDICULAR LINES

• Definition:

Two lines

meet (cross)

and create a

90 degree

angle.

PARALLEL LINES

• Definition:

Lines that lie in

the same

plane and

are the same

distance

apart over

their entire

length.

TRIANGLE• Definitio

n:

A closed

figure

with three

sides.

RIGHT TRIANGLE

• Definition:

A closed

figure with

three sides.

One angle

equals the

measure of

90 degrees.

PENTAGON• Definition:

A figure with

five sides.

HEXAGON• Definition:

A figure with

six sides.

SQUARE• Definition:

A four sided

regular

polygon with

four equal

sides and

angles.

Angles add up

to 90 degrees.

RECTANGLE

• Definition:

A four sided

figure

where all

interior

angles are

90 degrees.

TRAPEZOID

• Definition:

A

quadrilateral

figure which

has at least

one pair of

parallel sides.

PARALLELOGRAM

• Definition:

A

quadrilateral with

both pairs of

opposite sides

are parallel or

equal to each

other.

CIRCLE• Definition:

A line forming a

closed loop

every point

on which is a

fixed

distance

from the

center point.

CYLINDER• Definition:

The surface generated

by a straight line

intersecting and

moving along a

closed plane curve

while remaining

parallel to a fixed

straight line that is

not on or parallel to

the plane of the

directrix.

SPHERE• Definition:

A three-

dimensional

surface, all

points of

which are

equidistant

from a fixed

point.

CONE• Definition:The

surface generated by a straight line, the generator, passing through a fixed point, the vertex, and moving along a fixed curve, the

directrix.

OCTOGON• Definition:si

des are all the same length and whose internal angles are all the same size.

EQUALATERAL TRIANGLE

• Definition: An equilateral triangle is one in which all three sides are congruent.

Additional information

I took all of these pictures myself and they were all found at Katherine Rose Memorial Park and Linear Park.