What is the area of a trapezoid that has bases measuring 19 centimeters and 23 centimeters and a eight of 14 centimeters?Whats the length of each side of abse of the tank

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