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will_v reach_v from_o 12_o chain_n 50_o link_n to_o 11_o acre_n 37_o part_n 4._o have_v the_o base_a and_o perpendicular_a of_o a_o triangle_n give_v in_o perch_n to_o find_v the_o content_a in_o acre_n as_o 320_o to_o the_o perpendicular_a so_o the_o length_n of_o the_o base_a to_o the_o content_a in_o acre_n so_o in_o the_o triangle_n labernele_n if_o the_o line_n bd_o be_v take_v for_o the_o perpendicular_a of_o the_o triangle_n than_o the_o length_n of_o the_o base_a be_v 50_o perch_n and_o the_o perpendicular_a 36_o 2_o 5_o the_o area_n will_v be_v find_v to_o be_v 5_o acre_n 22_o part_n which_o be_v 2_o rood_n 30_o perch_n then_o if_o you_o extend_v the_o compass_n from_o 320_o to_o 36_o 2_o 5_o the_o perpendicular_a the_o same_o extent_n will_v reach_v from_o 50_o the_o length_n of_o the_o base_a to_o 5_o acre_n 22_o part_n 5._o the_o base_a and_o perpendicular_a of_o a_o triangle_n be_v give_v in_o chain_n to_o find_v the_o content_a in_o acre_n as_o 20_o to_o the_o 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