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All the angles in ANY triangle [on a plane surface] add up to 180 degrees.

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Q: What do all angles in an isoceles triangle add up to?
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Related questions

How many degrees are in an isoceles triangle?

All the angles in a triangle add up to 180 degrees. With the isoceles triangle, two of the angles must be the same, so you could have these three angles: 50, 50, 80. (50+50+80=180)


How many angles does a isosceles have?

An isoceles is a type of triangle with two sides of equal length. Like all triangles an isoceles triangle has three interior angles.


Is an isoceles triangle 180 degrees or 360 degrees?

The angles of all triangles have a sum of 180 degrees.An isoceles triangle has at least 2 equal sides (if all three are equal, it is an equilateral triangle).


How many of the interior angles of a scalene triangle are the same?

None that is why it is scalene, all sides and angles are different. Don't forget that all of the angles have to add up to 180 degrees.None that is why it is scalene, all sides and angles are different. Don't forget that all of the angles have to add up to 180 degrees.James and James Mathematics Dictionary (Van Nostrand, 1959) defines a scalene triangle as 'A triangle no two of whose sides are equal' since an isoceles triangle is a triangle with two equal sides and therefore two equal angles it would appear that a scalene triangle does not have any interior angles that are the same.


How do you classify triangles?

3 differnet types of triangles 1. Equilateral triangle (all lines are same length and every angle is 60 degrees) 2. Isoceles triangle (2 of the 3 lines are the same length and all 3 angles add to 180 degrees. 3. Scalene triangle (all 3 lines are different length but all angles add to 180) Hope I helped


Why can some isosceles triangles be ringt angle triangles?

An isosceles triangle only requires that two of its inside angles be equal to eachother. Therefore, a right angle triangle (90 degree inside angle) with two 45 degree inside angles on the the two other corners would be considered an isoceles triangle. However, this would be the ONLY right angle triangle that would be considered an isoceles triangle since all inside angles must add up to 180 (90+45+45=180).


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

Sum of angles in a triangle is 180


What 2d triange has 2 equal sides and 2 angles?

An Isoceles triangle has two equal sides and two equal angles (though all triangles have three angles)


The angles of a triangle all add up to?

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


How is it possible for Acute Equilateral and Isosceles classifications be in the same triangle?

An isoceles triangle has at least two sides equal; an equilateral has three sides equal so it is also isoceles; and since all angles are acute it is also an acute traingle


What is the sum of all of the interior angles of a triangle?

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


What do the three angles of a triangle always add up to?

The sum of all angles in a triangle always add up to 180 degrees