Yes
a 3 side shape.
triagle
they add up to 180 degrees
A triangle has 3 sides (edges) and three vertices (corners)
Yes it is
No
a three sided shape
English is important now a days because it is a universal language of trade, communication etc.
i think its electromagnetic radition
At = 1/2bh
Yes
3 or 2
One (1) is the most.
a right triangle. lol
The hypotenuse
a 3 side shape.