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If the sum is not 180° you are not in Euclidean space.

If the three angles of a triangle add up to more than 180° then you are in a spherical space, if the sum is less than 180° it is a hyperbolic space.The internal angles of a planar (Euclidean) triangle always add up to 180 degrees.

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Q: When do the angles in a triangle not add up to 180 degrees?
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Related questions

The angles to a triangle should add up to how many degrees?

The angles of a triangle add up to 180 degrees.


Does a triangle add up to 180 degrees?

the sum of the interior angles in a triangle is 180 degrees.


What is the sum of the angles in a triangle?

The Interior angles of a triangle add up to 180° The Exterior angles of a triangle (or any other polygon) add up to 360°.


Angles in a triangle?

There are 3 angles in a triangle and they add up to 180 degrees


Does and isocolies triangle equal 180 degrees?

Assuming the question was if an isosceles triangle have angles that add up to 180 degrees, then yes. All triangles have angles that add up to 180 degrees.


Is it possible for the angles of a triangle to measure or 180 degrees?

The 3 interior angles of any triangle add up to 180 degrees


What measues 180 degrees?

Angles on a straight line add up to 180 degrees or the 3 interior angles of a triangle add up to 180 degrees


What’s 180 degrees?

Angles on a straight line add up to 180 degrees or the 3 interior angles of a triangle add up to 180 degrees


Angles in a quadrilateral add up to 180?

No, the angles in a quadrilateral add up to 360 degrees. The angles in a triangle add up to 180 degrees.


What do the interior angles of a triangle add up to and what do the exterior angles add up to?

The interior angles of a triangle add up to 180 degrees. The exterior angles of a triangle add up to 360 degrees.


What do the angles of a rightangle triangle add up to?

The angles of any triangle add up to 180 degrees.


What angles are in a triangle?

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