Area - squares and rectangles

There are 90 NRICH Mathematical resources connected to Area - squares and rectangles
Rope Mat
problem

Rope Mat

Age
7 to 11
Challenge level
filled star filled star empty star
How many centimetres of rope will I need to make another mat just like the one I have here?
Take a square
problem

Take a square

Age
14 to 16
Challenge level
filled star filled star filled star
Cut off three right angled isosceles triangles to produce a pentagon. With two lines, cut the pentagon into three parts which can be rearranged into another square.
Framed
problem

Framed

Age
11 to 14
Challenge level
filled star filled star filled star
Seven small rectangular pictures have one inch wide frames. The frames are removed and the pictures are fitted together like a jigsaw to make a rectangle of length 12 inches. Find the dimensions of the pictures.
Compare Areas
problem

Compare Areas

Age
14 to 16
Challenge level
filled star filled star filled star
Which has the greatest area, a circle or a square, inscribed in an isosceles right angle triangle?
Wrapping Presents
problem

Wrapping Presents

Age
7 to 11
Challenge level
filled star filled star empty star
Choose a box and work out the smallest rectangle of paper needed to wrap it so that it is completely covered.
Lawn Border
problem

Lawn Border

Age
5 to 11
Challenge level
filled star empty star empty star
If I use 12 green tiles to represent my lawn, how many different ways could I arrange them? How many border tiles would I need each time?
Making Boxes
problem

Making Boxes

Age
7 to 11
Challenge level
filled star filled star empty star
Cut differently-sized square corners from a square piece of paper to make boxes without lids. Do they all have the same volume?
Two Squared
problem

Two Squared

Age
7 to 11
Challenge level
filled star empty star empty star
What happens to the area of a square if you double the length of the sides? Try the same thing with rectangles, diamonds and other shapes. How do the four smaller ones fit into the larger one?
Great Squares
problem

Great Squares

Age
7 to 11
Challenge level
filled star empty star empty star
Investigate how this pattern of squares continues. You could measure lengths, areas and angles.
Fencing Lambs
problem

Fencing Lambs

Age
7 to 11
Challenge level
filled star empty star empty star
A thoughtful shepherd used bales of straw to protect the area around his lambs. Explore how you can arrange the bales.