please I need help with the questions I circled

29-40 Refer to the figure and find the volume generated by rotating the given region about the specified line. y C(0, 1) B( 1, ) R 2 y = 4x P 3 y = x anuar RI Geate Then or washer o A(1, 0) 29. Ruj about OA 101 -up the 30. RI about OC 31. R, about AB 32. R1 about BC 33. At2 about OA For 34. R2 about OC 35. At2 about AB asher 36. R2 about BC 37. It3 about OA 38. R3 about OC 39. R3 about AB 40. R3 about BC