No
no, it is impossible
A straight line can intersect the side of a convex quadrilateral in at most two points and so divided it into at most two segments. A concave quadrilateral (an arrowhed or chevron) can be divided into three if the line touches the reflex vertex and cuts off the two "barbs" of the arrowhead. But 4 triangles is not possible.
A triangle can only have 1 right angle or 1 obtuse angle in it because its 3 interior angles add up to 180 degrees
Impossible
Yes, you are allowed to draw two acute angled triangles. Acute means less than 45 degrees. - lovelytoes
That is impossible as a square IS quadrilateral
No
Well the most that i could do were 12.
Yes.
none the diagonal will always be bigger than a side
no, it is impossible
show the drawing
A straight line can intersect the side of a convex quadrilateral in at most two points and so divided it into at most two segments. A concave quadrilateral (an arrowhed or chevron) can be divided into three if the line touches the reflex vertex and cuts off the two "barbs" of the arrowhead. But 4 triangles is not possible.
A triangle can only have 1 right angle or 1 obtuse angle in it because its 3 interior angles add up to 180 degrees
Impossible
A bit like a chevron or an arrowhead.