All of them.
Impossible shapes. They are four sided shapes with three sides!
no
Yes
we can make a trapezium with 3 equal triangles.
A quadrilateral equals 360 degrees because it can be divided into two triangles. Each triangle has an angle sum of 180 degrees, so when you add the angles of the two triangles together (180 + 180), you get 360 degrees. This property holds for all quadrilaterals, regardless of their shape.
Square
Yes
4.
Yes, Four Triangles make a rectangle.
Quadilateral.
360 degrees
Yes.