11-12. Three flags are shown below on flagpoles. For each flag, determine what shape appears if the flag is spun very quickly about its pole. If you do not know the name of the shape, describe it. 11-17. Examine the diagram of the triangle at right. Write an equation representing the relationship between x, y, and r. Write an expression for sinθ. What is sinθ if r = 1? Write an expression for cosθ. What is cosθ if r = 1?
11-12. Three flags are shown below on flagpoles. For each flag, determine what shape appears if the flag is spun very quickly about its pole. If you do not know the name of the shape, describe it. 11-17. Examine the diagram of the triangle at right. Write an equation representing the relationship between x, y, and r. Write an expression for sinθ. What is sinθ if r = 1? Write an expression for cosθ. What is cosθ if r = 1?