12 L 11 10 9 8 A K бм J 5 4 3 2 1 -12-11-10-9-8-7-6-5-4-3-2-11 X 1 2 4 5 6 7 8 9 10 11 12 -3 5 o do y doch B D -9 -10 -11 -12 Figure BCDE is congruent to Figure IKIMI

12 L 11 10 9 8 A K бм J 5 4 3 2 1 1211109876543211 X 1 2 4 5 6 7 8 9 10 11 12 3 5 o do y doch B D 9 10 11 12 Figure BCDE is congruent to Figure IKIMI class=