The sum of the angles in a triangle
The sum of the angles in a triangle is always equal to 180° (7th grade, Geometry, Maths)
A triangle has three angles on the inside.
Together they add up to exactly 180 degrees. Keep scrolling to check this.
The sum of the interior angles in the triangle is always 180°. This means that the three interior angles α, β and γ add up to 180°. You can use the sum of the interior angles of a triangle to calculate a missing angle in the triangle.
