On a plane surface you cannot. Assuming you mean a right angle when you say a square corner, it is not possible.
No. It is not possible to make a equilateral triangle that is obtuse.
An equilateral triangle has all equal sides. "Equal"ateral
draw a square with an equilateral triangle (the side must be as big as the side of the cube) joined by its side on all sides.
a larger equilateral triangle
It seems that if you can make 1, then you can make 3 .
make six equilateral triangles depending on the size edit: If it is an equilateral triangle, draw a line from each corner to the centre of the opposite side.
No. It is not possible to make a equilateral triangle that is obtuse.
An equilateral triangle has all equal sides. "Equal"ateral
Four equilateral triangles make up another equilateral triangle.
Two. One big square and a smaller one inside to make a corner into a triangle.
an isosceles triangle has 2 equal sides while the equilateral triangle has 3 equal sides
draw a square with an equilateral triangle (the side must be as big as the side of the cube) joined by its side on all sides.
Yes, they can. To demonstrate this draw a square on a sheet of paper. Draw a line diagonally from one corner to the one opposite. Cut along this line and you will have two triangles. Take them apart; if you put them together again in the right way you will have a square. Put together in different ways you can make an isosceles triangle or an equilateral parallelogram. If you do the same thing beginning with a rectangle, you will be able to reassemble the triangles to form a rectangle, isosceles triangle or a (non-equilateral) parallelogram.
a larger equilateral triangle
Yes. Acute angle is less than 90°. 60° which is less than 90°, can make an equilateral triangle .
because it has angles so you can't make a triangle
No two equilateral triangles do not make a square but two right triangles do.