Geometric shapes
Download
1 / 29

Geometric Shapes - PowerPoint PPT Presentation


  • 106 Views
  • Uploaded on

Geometric Shapes. Majed Al Naimi 9C. What is a perimeter?. A perimeter of a shape is the sum of the distances around the sides of the shape as shown in red. Perimeter. What is an area ?. The area of a shape is the number of square units that can fit inside the shape as shown in red. Area.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Geometric Shapes ' - ozzy


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Geometric shapes

Geometric Shapes

Majed Al Naimi 9C


What is a perimeter
What is a perimeter?

A perimeter of a shape is the sum of the distances around the sides of the shape as shown in red.

Perimeter


What is an area
What is an area ?

The area of a shape is the number of square units that can fit inside the shape as shown in red.

Area


S quare
Square

s

Perimeter = 4s

Area = s x s

s

s

s


Rectangle
Rectangle

Perimeter = 2l + 2w

Area = l x w

l

w

w

l


Triangle
Triangle

Perimeter = a + b + c

Area =

a

c

h

b


Parallelogram
Parallelogram

Perimeter = a + b + c + d

Area = b x h

d

a

h

c

b


T rapezoid
Trapezoid

Perimeter = a + b + c + d

Area =

a

c

h

d

b


Rhombus
Rhombus

Perimeter = a + b + c + d

Area =

a

b

h

k

c

d


Circle
Circle

Circumference =

Area =

r


Sector
Sector

Arc length =

Perimeter =

Area =

r


What is a surface area
What is a surface area?

The surface area of a three-dimensional solid with plane faces is the sum of the areas of the faces.

Surface area is the sum of the areas of the outside rectangle or how much paint we need to paint it from the outside.


What is a volume
What is a volume?

The volume of a solid is the amount of

space it occupies.

Volume of this shape is for example how much water can fit inside


3d shapes
3D shapes

There are different examples of regular 3D shapes like, prisms, pyramids and spheres.

Prisms

Sphere


Volumes for prisms and pyramids
Volumes for prisms and pyramids

The volume of a prism is

the area of the base multiplied

by the height.

The volume of a pyramid is one third the area

of the base multiplied by the height.


Rectangular prism
Rectangular prism

Volume = l x w x h

Surface area = 2lw + 2lh + 2wh

h

w

l


Triangular prism
Triangular prism

Volume =

Surface area = bh + bl + 2ls


Cylinder
Cylinder

Volume =

Surface area of solid cylinder =

Surface area of hollow can =

Surface area of hollow cylinder =


Square pyramid
Square pyramid

Volume =

Surface area =


Triangular pyramid
Triangular pyramid

Volume =

Surface area =


Cone

Volume =

Surface area of solid cone =

Surface area of a hollow cone =


Sphere
Sphere

Volume =

Surface area =


Real life dimensions of shapes
Real life dimensions of shapes

  • In the following slides I will be finding the real measurements of some shapes in real life such as soccer fields, pyramids, coca cola can, basket ball and traffic cone.


Soccer field
Soccer field

L = 120m

To know how many a meters a player would run around the soccer field we calculate the perimeter

Perimeter =

120 + 120+ 90 +90

= 420m

To know how much grass needed to cover the field we use the area.

Area = 90 x 120

=

W = 90m


Basket ball
Basket ball

Radius = 11.7 cm

To know how much air needed

to inflate the ball we need to

Calculate the volume.

Volume =

To know how much leather was used

In making the basket ball we need to

Calculate surface area.

Surface area =

r= 11.7cm


Pyramid
Pyramid

Height = 146 m

Base = 230 m

Lateral height= s

h

s

b

Volume =

Surface area =


Coca cola can
Coca Cola can

To know how much cola

can fit inside the can

we calculate the volume.

Volume =

To know how much aluminum was

Used in making the closed can we

Calculate the surface area.

Surface area =

I rounded the answer

up to take into account

the waste of material.


Ice cream cone
Ice cream cone

Radius = 6 cm

Height = 11 cm

Lateral height =

The amount of ice cream

That can fit inside the cone

Up to the tip of the cone

Is V =

r=6cm

h=11cm

s=12.5cm

The amount of biscuits used is the surface area of the hollow cone

Surface area =



ad