Geometrical Language

Shape

2D Shapes

One Face

You can't pick it up

Types

Triangle

A shape with 3 sides

prism is its 3d name

Types

Equilateral

Has 3 sides the same length

One line of symetry, which is vertically through the middle

All three angles are the same.

Exterior angles =

Interior Angles = 60 degrees and they add up to 180 degrees

Isosceles

two equal sides and one unequal, the unequal is called the base.

180 degrees of interior angles when added together.

right, obtuse, or acute are the only possible angle types

Where the two sides of the same length meet it is called the Vertex point

The angle at the vertex point is always different to the two base angles. The base angles are the always the same

Right Angled

all angles add up to 180 deegres

2 sides are equal

apart of the triangle family

there a 2 different types of right angled triangles 1 being the scalene right angled triangles and the isosoeles right angled triangle

the other 2 angles add up to 90 deegres which means 45 deegres

These angles are the interior angles that we are talking about

You could draw any type of triangle and 1 side would be 90 deegrees and the other sides could be anything and it would add up to 180 deegrees

it has 3 sides 3 corners and 1 face like all 2D shapes have 1 face

Scalene.

this triangles sides are all different lengths

Interior angles are all different

Longest side is opposite
the largest angle

Parallelogram

4 sides

4 corners

1 face

Part

1 face

Part of the quadrilateral family

New node

All its interior angles add upto 180 degrees

Square

A square has 4 corners

The interior angles of a square are all 90 degrees and they add up to 360 degrees

A square has 4 sides

All 4 sides have to be equal in order for the shape to be a square

A square has 1 face

It only has one face because it's a 2-D Shape

Part of the Quadrilateral Family

Rectangle

Is a shape with 4 sides

Part of the Quadrilateral Family

Pentagon

A pentagon has 1 face

A pentagon has 5 sides

New node

A pentagon has 5 angles

Each interior angle of a regular pentagon is 72 degrees

Types

Regular Pentagon

Convex Pentagon

Concave Pentagon

Irregular Pentagons

three triangles

Hexagon

Is a shape with 6 sides

6 corners

1 face

Interior angels add up to 720 degrees

New node

Octagon

Is a shape with 8 sides

New node

Oval

has no corners

A 2D shape is a flat shape that you cant pick up

Star

Is a shape with 5 points

Circle

A shape with no edges

one angle is 90 deegres

triangle

Rhombus

Base Ball Diamond

All sides have equal lenghts

New node

4 Side Shape

its a 2D Shape

Parallelogram

3D Shapes

Types

Cube

Cone

Spare

Height

Width

Length

Angles

Types

Right Angle

an angle which is exactly 90 degrees

Acute Angle

Least than 90 Degrees

0 - 89`

Reflex angel

Over 180 degrees

Obtuse Angle

>90d <180d

Protracter

Hexagon

6 sides

New node

Symetry

lines that meet the other side

Fold over

mirror

see the same thing on both sides

that when you fold it would be exactly the same with no overlap

looks the same on both sides

Rotation

turn

movement

clockwise and anti-clockwise

Measurement

translate

Slide-to move along the ground

Flip- Mirroring the other side

Width

Length

cm, m, km, feet

Meters

New node

Center Meters

height

New node

Geometrical Language

by Mr R

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