You may also like

problem icon

Tri.'s

How many triangles can you make on the 3 by 3 pegboard?

problem icon

Cutting Corners

Can you make the most extraordinary, the most amazing, the most unusual patterns/designs from these triangles which are made in a special way?

problem icon

Bracelets

Investigate the different shaped bracelets you could make from 18 different spherical beads. How do they compare if you use 24 beads?

Triangle Shapes

Age 5 to 11 Challenge Level:
 
2StartTris
Here are two triangles. We're going to see what shapes we can get by using many of them.
You might like to print off this sheet of triangles to cut out and use, or you could use this interactive board to make shapes:

Full Screen Version

If you can see this message Flash may not be working in your browser
Please see http://nrich.maths.org/techhelp/#flash to enable it.



You might try putting them together like this:
TessYell

Try making that or something similar.

Sometimes you can make "jewel-like" shapes:
JewelSmall
See what "jewels" you can make.

You might make the triangles from different materials, or use an overhead projector transparency so that they are a bit transparent, then you can overlap them:
Overlap2
When you do that, you might try to see what shapes you've made at the overlap.

Maybe you could experiment further with this idea and create pictures like these:
Overlap2
 

Please do send in pictures of the shapes you make, whether they include overlaps or not.
Tell us what you notice about the shapes you've made.