( 3), , , , 11 ( > 103 /105 , ), 17 ( > 103 , < 103 /105 , 4 ); 33% , 90% 0% , 66% 80%, 71% 0% , . , .
3 (.. , ) ( ) (, -, × 250). ( ) -1 - (B, -, × 400).
, , , -, 4,5 6. , , ( 4, C F) (. ). , ( 6, C F), ( 5, E F), ( 5, D) (. ).
4. , - ( ) (AD). , , ( , ) (F), (B E).
5 ( ), (A-C). - , ( ) , (D), .
6. (A, B, D, E), (C, F), .