Pls tell how ans is vertical towards east? I've underlined the doubt part...
Dear Student ,
Rain falling 19o of south of vertical that is why the boy should hold his umbrella in the vertical plane at an angle about 19o with the vertical towards the east .
Regards
Rain falling 19o of south of vertical that is why the boy should hold his umbrella in the vertical plane at an angle about 19o with the vertical towards the east .
Regards