Suppose a triangle has sides a, b, and c, and let theta be the angle opposite the side of length a. if cos theta > 0 what must be true? a. a2 + b2 > c2 b. a2 + b2 = c2 c. b2 + c2 < a2 d. b2 + c2 > a2

Triangle xyz, with vertices x(-2, 0), y(-2, -1), and z(-5, -2), undergoes a transformation to form triangle x? y? z? , with vertices x? (4, -2), y? (4, -3), and z? (1, -4). the type of transformation that triangle xyz undergoes is a . triangle x? y? z? then undergoes a transformation to form triangle x? y? z? , with vertices x? (4, 2), y? (4, 3), and z? (1, 4). the type of transformation that triangle x? y? z? undergoes is a .