If the area of traingleular region RST is 25, what is the perimetr of RST?
1. The lenght of one side of RST is 5sq of 2
2.RST is the right isosceles triangle.
i get B
since we know that RST is both a right triangle and isosceles, we can determine that both the base and the height is 5, and using the Pythagorean Thm, we can establish that the hypotenuse is 5sqt 2
so the perimeter must be 10 + 5sqrt 2