Yes
Rohmbus is a four sided figure (quadrilateral) that is made up of two equilateral triangles
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.
A 16 sided polygon is made from 14 triangles
A dodecagon is a 12 sided shape made from 10 triangles
Yes
Yes
Rohmbus is a four sided figure (quadrilateral) that is made up of two equilateral triangles
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.
Because there are 540 interior degrees in a five sided figure and the total sum of three triangles is 540 degrees
Yes because there are 540 degrees in a pentagon and 180 degrees in a triangle so 540/180 = 3 triangles.
Yes because 3*180 are the interior degrees of a pentagon.
A 16 sided polygon is made from 14 triangles
A dodecagon is a 12 sided shape made from 10 triangles
Because all other polygons are made from triangles as for example an 8 sided octagon has 6 triangles within it or a 6 sided hexagon has 4 triangles within it.
There are: 63-2 = 61 triangles