yes
Yes. You can always draw a "diagonal" line between opposite corners of any four-sided figure. Then, cutting along that line, you wind up with two triangles out of which the figure could have been made.
Depends on what figures are "from brackets".
Rohmbus is a four sided figure (quadrilateral) that is made up of two equilateral triangles
Because the sum of the sides of three triangles is nine... Placing three triangles together so they all touch effectively removes four of the total number of sides - leaving five.
Because there are 540 interior degrees in a five sided figure and the total sum of three triangles is 540 degrees
Yes
yes
Yes
Yes because 3*180 are the interior degrees of a pentagon.
You can always find opposite corners that can be connected with a line which divides the quadrilateral into two trilaterals.
Yes. You can always draw a "diagonal" line between opposite corners of any four-sided figure. Then, cutting along that line, you wind up with two triangles out of which the figure could have been made.
Yes because there are 540 degrees in a pentagon and 180 degrees in a triangle so 540/180 = 3 triangles.
Yes. Take any quadrilateral, and connect 2 opposite corners with a line segment. Now you have 2 triangles.
Yes, because the number of triangles that are formed in a polygon is 2 less than the numbers of its sides.
McFarlane Figures made it's name creating figures based on movie, cartoon and video games. It has created figures from The Simpsons, Where The Wild Things Are and innumerable baseball and basketball stars.
Depends on what figures are "from brackets".