No because an equilateral triangle is a regular polygon whereas an obtuse triangle is irregular
Irregular
As it wouldn't be a triangle. If you forced this, you would then have formed an irregular polygon square missing a side.
obtuse triangle
A triangle with 1 obtuse angle is called an obtuse triangle.
It is irregular
No because an equilateral triangle is a regular polygon whereas an obtuse triangle is irregular
Irregular
A quadrilateral with 3 acute angles and 1 obtuse angle is known as a scalene trapezoid. In this type of quadrilateral, three of the angles are less than 90 degrees (acute angles), while one angle is greater than 90 degrees (obtuse angle). The sides of a scalene trapezoid are of different lengths, and the opposite sides are not parallel. This distinguishes it from other types of quadrilaterals such as rectangles or parallelograms.
As it wouldn't be a triangle. If you forced this, you would then have formed an irregular polygon square missing a side.
obtuse triangle
An obtuse triangle has an obtuse angle.
An oxymoron. An equilateral triangle cannot be obtuse; an obtuse triangle cannot be equilateral.
obtuse triangle
A triangle with 1 obtuse angle is called an obtuse triangle.
This depends on the polygon.For a triangle (3-sides) : maximum 1 obtuse angle.Quadrialteral (4-sides): maximum 3 obtuse angles.For polygons with more sides, it is possible for all angles to be obtuse.
-- No right triangle, acute triangle, or equilateral triangle has an obtuse angle in it. -- If a triangle has an obtuse angle in it, then it's called an obtuse triangle. -- No triangle can have more than one obtuse angle in it .