It is called an equilateral triangle.
A non equal sided polygon is called a quadrilateral, or quadrangle.
An isosceles triangle
equilateral traingle
A four-sided solid is called a tetrahedron.
A three-sided polygon with two equal sides is called an isosceles triangle. In an isosceles triangle, the two equal sides are referred to as the legs, while the third side is known as the base. The angles opposite the equal sides are also equal.
A traingle is a 3 sided figure that is somteimes always equal.
Equal sided = equilateral.
A non equal sided polygon is called a quadrilateral, or quadrangle.
traingle right triangle and left triangle
An isosceles triangle
a quadrilateral
a regular polygon
equilateral traingle
A non-descript four sided figure is a quadrilateral.
A scalene triangle.
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There are three equal sides in an equilateral triangle.