'Equilateral' comes from the Latin word "aequilateralis".
'aequi' comes from the word "aequalis", meaning 'equal', and 'lateralis' means 'relating to the side'.
'Equilateral' means 'equal sides'.
The Interior Angles of an Equilateral Triangle
The interior angles of any triangle add up to 180°.
Since all three angles are the same in an equilateral triangle, the 180° is divided equally between each interior angle.
This is why each angle is 60°.
Interactive Game on the Types of Triangle
Here is an interactive game to help you learn about the types of triangle.
Click on a triangle so it drops into the correct "bucket."
In total, there are 10 triangles to clear.
If a triangle drops into the wrong "bucket," you will lose one of your three lives.