Parallelogram ABCD contains two congruent triangles. In two or more complete sentences use the triangles to prove opposite sides are congruent in parrallelgram ABCD

Adolphin is swimming with her friend. the dolphin jumps to a height of 4.54.54, point, 5 meters above the surface of the water as her friend swims 9.89.89, point, 8 meters directly below her. what is the position of the dolphin's friend relative to the surface of the water? meters