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Resources tagged with Equilateral triangles similar to Impossible Triangles?:

Other tags that relate to Impossible Triangles?

Video. Mathematical reasoning & proof. Rational and irrational numbers. Making and proving conjectures. Generalising. Equilateral triangles. Number theory. Manipulating algebraic expressions/formulae. Patterned numbers. Inequality/inequalities.

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Broad Topics > 2D Geometry, Shape and Space > Equilateral triangles

Impossible Triangles?

Stage: 5 Challenge Level:

Which of these triangular jigsaws are impossible to finish?

Of All the Areas

Stage: 4 Challenge Level:

Can you find a general rule for finding the areas of equilateral triangles drawn on an isometric grid?

Equal Equilateral Triangles

Stage: 4 Challenge Level:

Using the interactivity, can you make a regular hexagon from yellow triangles the same size as a regular hexagon made from green triangles ?

The Square Hole

Stage: 4 Challenge Level:

If the yellow equilateral triangle is taken as the unit for area, what size is the hole ?

Gold Yet Again

Stage: 5 Challenge Level:

Nick Lord says "This problem encapsulates for me the best features of the NRICH collection."

LOGO Challenge 5 - Patch

Stage: 3 and 4 Challenge Level:

Using LOGO, can you construct elegant procedures that will draw this family of 'floor coverings'?

LOGO Challenge 6 - Triangles and Stars

Stage: 3 and 4 Challenge Level:

Recreating the designs in this challenge requires you to break a problem down into manageable chunks and use the relationships between triangles and hexagons. An exercise in detail and elegance.