acute triangle acute triangle
obtuse triangle
obtuse triangle

Types of Angles

THINGS TO DO

You should have two of each sort of triangle.

Look at the triangles, and give the right name to each of the angles. Which are acute? Which is obtuse?

See which angles are equal to each other, not only inside each triangle, but also comparing one shape with the other shape. Hold one tile on top of another to do this.

See which angles are the same as two other angles put together. Is there any angle equal to three others put together?


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Copyright © John Everett (Leicestershire, UK) 2002,2003