Maths: types of triangle

Today we learned about three types of triangle:

• An equilateral triangle has three equal sides. That means it must also have three equal angles.



• An isosceles triangle has two equal sides, and one side that is different. That means it must have two equal angles, and one angle that is different.



• A scalene triangle has all three sides different. That means all the angles must be different too.

To try the online triangle sorting activity, click here, and scroll down to Triangle Sort.