Background. You'll be using Sketches 2, 3, and 4 of this file to explore which coloured triangles could fit into the given triangle outlines. Each triangle type has a different colour (pink for ...

Discover the different types of triangles and find out the difference between an equilateral, scalene, isosceles and right-angled triangle in this KS2 guide.

The only way to work out an angle in a scalene triangle is if we know the other two angles. Right-angled triangle. A right-angled triangle is a triangle where one of the angles is 90 degrees.

Have one student drag the scalene triangle to review its properties. Have the students predict whether the scalene triangle will fit into the equilateral outline. Now have a student explore trying to ...