Question

i think its B but am i right

Answer 1

http://www.mathsisfun.com/geometry/triangles-interactive.html <---

if a triangle has sides 1 1 and 1
that means all sides are EQUIvalent, or the same length
check in that triangle above on the "equilateral" one
see if all equal sides give you a right angle anywhere

Answer 2

i dont see angle right angles