Question 578794
the 1st "triangle" IS a straight line, but (looking at the side lengths) so is the 2nd


you can use the distance formula to find the side lengths of the 1st triangle


use a compass to construct the 2nd triangle
___ the given vertices are 10 units apart
___ draw an arc of 30 units length from one vertex, and an arc of 20 units length from the other vertex
___ the intersection of the arcs (really a tangency) will show the position of the 3rd vertex