2D shapes and their properties

problem
Favourite

An Equilateral Triangular Problem

Age

11 to 14

Challenge level

1 out of 3

Take an equilateral triangle and cut it into smaller pieces. What can you do with them?
game
Favourite

Quadrilaterals Game

Age

11 to 14

Challenge level

1 out of 3

A game for 2 or more people, based on the traditional card game Rummy.
problem
Favourite

Blue and White

Age

11 to 14

Challenge level

1 out of 3

Identical squares of side one unit contain some circles shaded blue. In which of the four examples is the shaded area greatest?
problem
Favourite

Hidden Squares

Age

11 to 14

Challenge level

1 out of 3

Can you find the squares hidden on these coordinate grids?
problem
Favourite

Completing Quadrilaterals

Age

11 to 14

Challenge level

1 out of 3

We started drawing some quadrilaterals - can you complete them?
$Guess \my Quad$

problem
Favourite

Guess My Quad

Age

11 to 14

Challenge level

1 out of 3

How many questions do you need to identify my quadrilateral?
problem
Favourite

Rolling Around

Age

11 to 14

Challenge level

2 out of 3

A circle rolls around the outside edge of a square so that its circumference always touches the edge of the square. Can you describe the locus of the centre of the circle?
problem
Favourite

Square Coordinates

Age

11 to 14

Challenge level

2 out of 3

A tilted square is a square with no horizontal sides. Can you devise a general instruction for the construction of a square when you are given just one of its sides?
problem
Favourite

Shapely Pairs

Age

11 to 14

Challenge level

2 out of 3

A game in which players take it in turns to turn up two cards. If they can draw a triangle which satisfies both properties they win the pair of cards. And a few challenging questions to follow...
problem
Favourite

Property Chart

Age

11 to 14

Challenge level

2 out of 3

A game in which players take it in turns to try to draw quadrilaterals (or triangles) with particular properties. Is it possible to fill the game grid?