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triangles all have three sides because the stem tri means 3 and its angle means sides so it has three angles which equals three sides

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Q: Why do all triangles have 3 sides?
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Related questions

What kind of triangles have 2 sides?

None because all triangles have 3 sides


Are all equilateral triangles are congruent?

no. if one triangles sides are all 2 and one triangles sides are all 3 then they are not congruent


Are all squares triangles?

No because squares have 4 sides whereas triangles have 3 sides


What are the shapes that have 3 sides and 3 vertices?

The shapes that have 3 sides and 3 vertices are called triangles. Triangles are classified based on the lengths of their sides and the measures of their angles. The three most common types of triangles are equilateral triangles (all sides and angles are equal), isosceles triangles (two sides and two angles are equal), and scalene triangles (all sides and angles are different).


Do all triangles have 3 sides and 3 angles?

No, only if they are in the form of equilateral triangles


Are Triangles equilateral triangles?

Triangles are equilateral triangles only when all of their 3 sides are equal in lengths.


Do all triangles have 3 sides?

yes


Does a triangle have 2 congruent sides?

Some, but not all. Triangles with 2 congruent sides are called isoceles triangles. Triangles with 3 congruent sides are called equilateral triangles.


Do icosceles triangles have all 3 sides equal?

No. Isosceles triangles have two sides of equal length.


Do all triangles have 3 equal sides and 3 angles?

No, only if they are in the form of equilateral triangles


How many sides does obtuse triangle have?

All triangles have 3 sides.


How many sides isosceles triangles has?

All triangles have exactly 3 sides. That is what the word triangle means, a geometrical figure having 3 angles and 3 sides. Always 3.