Posted by Peter on 25th November 2009

Resource of the Week: Venn diagrams and triangles

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Most of the maths worksheets you find free on the internet tend to be number based. But not here on mathsblog! There are two parts to this free maths worksheet on classifying shapes, both involving Venn diagrams. The idea is to put either the names of shapes or drawings of shapes in the correct areas of the Venn diagram.

Some examples have been put in the Triangles diagram. Some careful thought needs to be put into this exercise. For example, is it possible to have a right angled triangle which is also isosceles (ie two sides the same length). If so, is it possible to have a right angled triangle which is also equilateral? I’ll leave to to work out the answers to these.

Notice the scalene triangle which is outside the other areas as it has no equal sides and no right angles.

The second diagram is to put polygons and quadrilaterals in: remember that whilst many of the quadrilaterals we see in real life are regular, they do not have to be so.

Free Y5 maths worksheet: Classify shapes using Venn diagrams

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