How do I find the length of a side of a triangle, that is not a right triangle, if I know the length of 2 sides are 20 and 30 and do not know any angles?
Hi there! On ANY Triangle, the sides will always add up to 180
So if we know both of the other sides, 20 and 30, we can just add those to get 50, and subtract 180 - 50 = 130. and that should be the length of the missing side.
