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Regular, Acute, and Equilateral

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Regular and Equilateral are correct but not Acute. An acute triangle with angles of 50,60 70 degrees for example, is not regular.

An equiangular triangle is the third possible name.

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Q: What are the three names of a regular triangle?
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Related questions

What are facts about regular triangles?

In a equilateral triangle (or regular triangle) the three sides have equal length.

What is the regular polygon have three side?

A regular polygon with three sides - is an equilateral triangle.

What are the names of the regular shapes with 3 and 10 sides?

A shape with three sides is called a triangle. A shape with ten sides is called a decagon.

Can an equilateral triangle be a regular polygon?

Yes, an equilateral triangle can be a regular polygon because it has three equal sides and three equal interior angles.

What are the three main triangle names?

equalateral, isosiles, and right triangle

What is the difference between an isosceles and a regular triangle?

An isosceles triangle has two equal sides and one that isn't. A regular triangle has three equal sides.

How many lines of symmetry does a regular triangle have?

A regular triangle (aka equilateral triangle) has three lines of symmetry - these are its medians, In general, a regular n-gon has n lines of symmetry.

What do you call a three sided regular polygon?

It is an equilateral triangle.

How many lines of symmetry are in a regular triangle?

If you're referring to an equilateral triangle, a triangle in which all three sides are the same length, then there are three lines of symmetry.

What is a regular three-sided shape called?

An equilateral triangle.

Is an acute triangle ever regular?

Yes. An acute triangle has three acute angles so that would make it a regular polygon with congruent sides.

Is a triangle a irregular polygon?

A triangle is a polygon. It can be regular or irregular. If it's regular, then all three sides are the same length, and it's called an "equilateral triangle". If all three sides aren't the same length, then it's an irregular polygon.