Your SlideShare is downloading. ×
0
Isosceles triangles (1)
Isosceles triangles (1)
Isosceles triangles (1)
Isosceles triangles (1)
Isosceles triangles (1)
Isosceles triangles (1)
Isosceles triangles (1)
Isosceles triangles (1)
Isosceles triangles (1)
Isosceles triangles (1)
Isosceles triangles (1)
Isosceles triangles (1)
Isosceles triangles (1)
Isosceles triangles (1)
Isosceles triangles (1)
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Isosceles triangles (1)

173

Published on

Published in: Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
173
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
3
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. TrianglesTriangles
  • 2. Take arectangularpiece of paper.
  • 3. Take arectangularpiece of paper.Fold it in half
  • 4. Take arectangularpiece of paper.Fold it in halfUse a ruler todraw a linefrom the top ofthe fold to thebottom righthand corner.
  • 5. Take arectangularpiece of paper.Fold it in halfUse a ruler todraw a linefrom the top ofthe fold to thebottom righthand corner.Cut along theline.
  • 6. You should now have 3 triangles
  • 7. Can you prove that this is a lineof symmetry?
  • 8. Does this triangle have any otherline of symmetry?
  • 9. No it doesn’t. It only has the one.
  • 10. How can we prove that line ac is equal to line bc?a bcdBy folding along the line of symmetry. If you haven’t tried it, do it now.
  • 11. abcdbThis type of triangle,where two sides areequal, has a specialname.It is called anISOSCELES triangle
  • 12. abcdbStick this triangleinto your jotter andname it ISOSCELEStriangle.Now use the othertwo pieces of therectangle to makeanother isoscelestriangle.
  • 13. Your new triangle should look like this.How do we know it is isoscles?
  • 14. Which of these triangles do you think is isosceles?
  • 15. These are the isosceles triangles.Write in your jotter how we candescribe an isosceles triangleand how we can prove it isisosceles.

×