S2 Line SymmetryS2 Line Symmetry

Thurs 30Thurs 30thth Nov Nov

S2 Lesson StarterS2 Lesson Starter Thurs 30Thurs 30thth Nov NovQ1.Q1. Calculate the area of this right angles triangleCalculate the area of this right angles triangle

Q2.Q2. There are 9 fishing boats floating in Tarbert harbour. There are 9 fishing boats floating in Tarbert harbour. 180 boxes of fish have been landed in total by 9 boats. What 180 boxes of fish have been landed in total by 9 boats. What was the average number of boxes landed per boat? was the average number of boxes landed per boat?

Q3.Q3. The cost of hiring a car from Lo-cost Car Hire depends on the The cost of hiring a car from Lo-cost Car Hire depends on the number of miles travelled. To work out the cost of hiring a car number of miles travelled. To work out the cost of hiring a car this function machine is used. One day Mr Berry hired a car this function machine is used. One day Mr Berry hired a car

and and the bill came to £19.50. the bill came to £19.50.

How many miles did he travel in his hired car?How many miles did he travel in his hired car?

5 cm

4 cm

Number of miles

Add 150 Divide by 10Cost in Pounds

Line SymmetryLine Symmetry

Shape has line symmetry when one halfShape has line symmetry when one halfof it is the mirror image of the other half.of it is the mirror image of the other half.

What is it?

Is a butterfly Is a butterfly symmetrical?symmetrical?

Where else does line Where else does line symmetry exist in the symmetry exist in the

world around us?world around us?

Line Symmetry at The BeachLine Symmetry at The Beach

Animals that have Animals that have Line SymmetryLine Symmetry

Here are a few more great examples of Here are a few more great examples of mirror image in the animal kingdom.mirror image in the animal kingdom.

THESE MASKS HAVE THESE MASKS HAVE SYMMETRYSYMMETRY

These masks have a line of These masks have a line of symmetry from the forehead to symmetry from the forehead to

the chin.the chin.    

The human face also has a line of The human face also has a line of symmetry in the same place…symmetry in the same place…

LHSLHS RHSRHS ORIGORIG LHSLHS RHSRHS ORIGORIG

Human SymmetryHuman Symmetry

The 'Proportions of The 'Proportions of Man' is a famous work Man' is a famous work of art by Leonardo da of art by Leonardo da Vinci that shows the Vinci that shows the

symmetry of the symmetry of the human form.human form.

REFLECTION IN REFLECTION IN WATERWATER

If an object is If an object is reflected in water it reflected in water it

is considered to is considered to have line have line

symmetry along symmetry along thethe

WATERLINEWATERLINE

Symmetry exists in architecture all Symmetry exists in architecture all around the world.  The best known around the world.  The best known example of this is the Taj Mahal.example of this is the Taj Mahal.

The Taj MahalThe Taj Mahal

This photograph shows 2 lines of This photograph shows 2 lines of symmetry. symmetry.

(Notice how the prayer towers, called minarets, are reflected in the (Notice how the prayer towers, called minarets, are reflected in the water and side to side).water and side to side).

One vertical, the other along the waterline.One vertical, the other along the waterline.

Religious SymbolsReligious Symbols

TATOOSTATOOS

LETTERS OF THE ALPHABETLETTERS OF THE ALPHABET

PATCHWORK QUILTSPATCHWORK QUILTS

TASK:

Create a Patchwork Quilt design on

squared paper with 2 lines of symmetry