The 3 inside angles of any triangle add up to 180 degrees
Chat with our AI personalities
The third angle is 85 degrees. The sum of all internal angles in a triangle is always 180 degrees
The three angle sum of ANY triangle is 180 degrees.
An obtuse angled triangle can have can have one internal angle of 120 degrees.
In a triangle, the sum of the angles is always 180 degrees. This is known as the angle sum property of triangles. Additionally, the largest angle in a triangle is always opposite the longest side, and the smallest angle is opposite the shortest side.
The sum of the internal angles of a triangle is 180º. If B is a right angle it has 90º, so there are only 90º left for the other two angles, meaning that they cannot be right!