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Since triangles have three sides and must have interior angles equal to pi or 180o, the three interior angles in all equilateral triangles will be pi/3 or 60o.
However, equilateral triangles must also have equal side lengths. Since equilateral triangles with interior angles of 60o will not necessarily have the same side lengths, two equilateral triangles will sometimes be similar to each other.
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Are two obtuse triangles sometimes always or never similar?
sometimes
Are equilateral triangles equiangular?
Yes, all the angles of an equilateral triangle are always 60 degrees.
Does triangular prisms always have two bases that are equilateral triangles?
yes, they do ,because they have two bases that are equilateral triangle and three faces that are rectangles.
Are Equilateral and equivalent triangles the same thing?
No Equilateral triangles are triangles that have all of its three sides the same exact measurement. This means that if all the sides are the same then all of the interior angles will equal the same. And they always equal 60 degrees in an equilateral triangle. Equivalent traingles are just traingles that are equal in size and angles to another triangle equal. Equivalent traingles can be equilateral but they do not have to be.
Is that true that if two congruents triangles are always similar?
Yes.
