It has 34 triangles
It contains 36 triangles
Using systematic polygon names, the name of a 36-sided regular polygon would be a tricontakaihexagon.
triacontakaihexagon
6020
It is a regular 10 sided decagon
It contains 36 triangles
36
1/2*36*(36-3) = 594 diagonals.
Using systematic polygon names, the name of a 36-sided regular polygon would be a tricontakaihexagon.
triacontakaihexagon
6020
We just call it a 36-gon
1/2*(362-3*36) = 594 diagonals
170˚
It is: 360/36 = 10 sided regular decagon polygon
36 degrees
The exterior angles of any polygon including a 36 sided polygon always add up to 360 degrees.