triagle
Yes
not as important as a square or hexagon trade
they add up to 180 degrees
A triangle has 3 sides (edges) and three vertices (corners)
3 or 2
triagle
None
icoceles,right angle,scalen and equilateral
None, by definition
Yes it is
No
Look for the line of simitry. :D
a three sided shape
i think its electromagnetic radition
At = 1/2bh
Yes