What is the radius of a circle in which a 30° arc is 2 inches long?

What aspects of lines have to be diffrent

Select the correct answer and solve for y

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