The total interior angles of a triangle = 180°

Mnemonic to help you remember the total sum of the interior angles of a triangle

The triangle scored three treble twenties in her darts game which gave a combined score of 180.

The total internal angles of a triangle = 180°

Example 1

`60°+90°+30°=180°`

The interior angles of a triangle add up to 180°

Example 2

All we have done in this example is push the one side (A-B) of the triangle further in.

Any triangle equals 180 degrees

`100°+50°+30°=180°`

Example 3

An equilateral triangle will have 3 equal internal angles and would be

`180^circ/3=60^circ`

Each internal angle is 60°.

An equilateral has 360 degree corner angles

1		2		3
`60°`	`+`	`60°`	`+`	`60°`	`=`	`180°`

But the interior angles would still add up to 180°.