**Geometry Picture Book**

Line Segment

A line segment is part of a line connecting two points.

Square

A square is a quadrilateral that is equilateral and every angle is 90 degrees.

Parallelogram

A parallelogram is a quadrilateral with two pairs of parallel sides.

Circle

Triangle

Sphere

Rectangle

Rectangle

Trapezoid

Rhombus

Chords of a Circle

Obtuse Angle

Acute Angle

Right Triangle

Equilateral Triangle

Congruent Triangles

Right Angle

Congruent Circles

Intersection

Parallel Lines

Vertex of an Angle

Ray

Similar Triangles

Skew Lines

Center of a Polygon

Scalene Triangle

A circle is a 2-dimensional

shape made by drawing

a curve that is always the

same distance from the

center.

A triangle is a three

sided polygon.

A sphere is a

3-dimensional

circle.

A rectangle is a

quadrilateral

with four right

angles and two

pairs of parallel

sides.

A trapezoid is a

quadrilateral

with one pair of

parallel sides.

A rhombus is a

quadrilateral that is

equilateral and has

two pairs of parallel

sides and opposite

angles are equal.

A chord of a circle

is a line connecting

two points on a

circle's

circumference.

An obtuse angle is an angle between

90 degrees and

180 degrees.

An acute angle is an

angle less than 90

degrees.

An equilateral

triangle is a

triangle with three

equal sides.

A right triangle

is a triangle with

one 90 degree

angle.

Congruent

triangles are

triangles that are

equal size and

shape.

A right angle is

an angle that is

90 degrees.

Congruent circles

are circles that are

equal size and

shape.

Intersection is the

point where lines

meet.

Lines in the

same plane

that never

intersect.

The vertex of

an angle is the

endpoint

where two line

segments meet.

A ray is part of a line

that starts at a point

and extends forever in

one direction.

Similar triangles

are triangles with

the same angle

measures and the

sides are

proportional.

Skew lines are lines

that do not intersect

and are not parallel.

The center of a

polygon is the

point inside a

polygon that is

the same

distance from

every vertex.

A scalene triangle

is a triangle with

three unequal sides.

Ophoven, Belgium

Mayan temple in Tikal, Guatemala