На рисунке 5 МК || АС, АО и CO – биссектрисы углов ВАС и BCA, AB = 9 см, ВС = 10 см, AC = 11 см. Найдите периметр ∆МВК.
1) 19 см;
2) 20 см;
3) 15 см;
4) 21 см.​
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