TO_CONTINUE_A_SURVEY_LINE_AB_PAST_AN_OBSTACLE,_A_LINE_BC_300_M_LONG_WAS_SET_OUT_PERPENDICULAR_TO_AB_AND_FROM_C_ANGLES_BCD_AND_BCE_WERE_SET_OUT_AT_60¬¨ àû_AND_45¬¨ àû_RESPECTIVELY._DETERMINE_THE_THE_OBSTRUCTED_LENGTH_BE??$#

• A. 250 m
• B. 600 m
• C. 452.28 m
• D. 300 m