What is the degree equivalent for an angle that is 3π2 radians?

Graph a triangle (xyz) and reflect it over the line y=x to create triangle x’y’z’. describe the transformation using words. draw a line segment from point x to the reflecting line, and then draw a line segment from point x’ to the reflecting line. what do you notice about the two line segments you drew? do you think you would see the same characteristics if you drew the line segment connecting y with the reflecting line and then y’ with the reflecting line? how do you know?

Yuto solved the equation below. what is the solution to yuto’s equation?

What’s a definition for a polygon inscribed in a sphere ?