Quadrilaterals

There are 65 NRICH Mathematical resources connected to Quadrilaterals
Seeing Parallelograms
problem
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Seeing parallelograms

Age
7 to 11
Challenge level
filled star empty star empty star

Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a parallelogram.

Rhombus It
problem
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Rhombus it

Age
11 to 16
Challenge level
filled star filled star empty star

Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a rhombus.

Parallelogram It
problem
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Parallelogram it

Age
11 to 16
Challenge level
filled star empty star empty star

Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a parallelogram.

Guess \my Quad
problem
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Guess my quad

Age
11 to 14
Challenge level
filled star empty star empty star

How many questions do you need to identify my quadrilateral?

Completing Quadrilaterals
problem
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Completing quadrilaterals

Age
11 to 14
Challenge level
filled star empty star empty star

We started drawing some quadrilaterals - can you complete them?

Quadrilaterals in a Square
problem
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Quadrilaterals in a square

Age
11 to 14
Challenge level
filled star filled star empty star
What's special about the area of quadrilaterals drawn in a square?
Shape Draw
problem
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Shape draw

Age
7 to 11
Challenge level
filled star empty star empty star

Use the information on these cards to draw the shape that is being described.

Poly Plug Rectangles
problem
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Poly plug rectangles

Age
5 to 11
Challenge level
filled star empty star empty star
The computer has made a rectangle and will tell you the number of spots it uses in total. Can you find out where the rectangle is?
Bracelets
problem
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Bracelets

Age
7 to 11
Challenge level
filled star empty star empty star

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

Shapely pairs
problem
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Shapely pairs

Age
11 to 14
Challenge level
filled star filled star empty star

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...