Q: Why can't triangles be 180 degree angles?

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No, only right angle triangles, but all the angles in a triangle will add up to 180 degrees.

The three interior angles of every triangle add up to 180 degrees, so none of them can be greater than 180 degrees.

All right angle triangles have a 90 degree angle and two acute angles which all together the 3 angles add up to 180 degrees.

A triangles angles must add up to 180 degrees, no more or less

Yes, all triangles have the sum of their angles as 180 degrees.

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No, only right angle triangles, but all the angles in a triangle will add up to 180 degrees.

because triangles only have 3 angles that add up to 180

The three interior angles of every triangle add up to 180 degrees, so none of them can be greater than 180 degrees.

Triangles whether acute, obtuse, equilateral or scalene will only ever have angles that add to 180 degrees.

All right angle triangles have a 90 degree angle and two acute angles which all together the 3 angles add up to 180 degrees.

A triangles angles must add up to 180 degrees, no more or less

Yes, all triangles have the sum of their angles as 180 degrees.

It cant be possible because a triangle only consists of 180 degree angles !! As 90 + 90 = 180 thus 2 or more than 2 angles in a triangle cant be right angles i.e. 90 degree :D

All triangles have angles that total 180degrees. If given 2 angles add them together and subtract (or take away from) 180, answer is angle. Example A triangle has 2 angles of 90 & 30 degrees what is the 3rd angle. 90+30=120, 180-120=60degrees

Triangles can only have an internal angle sum of 180, if you have two angles at 90 degrees, their sum would be 180 leaving no more degrees to create the last angle.

Not possible because all triangles have a total sum of 180 degrees interior angles.

No because a triangles inner angles must equal a whole 180 degrees and an equilateral has to have all equal interior angles and 75+75+75 does not equal 180