Помогите. даю много баллов

Question

Помогите. даю много баллов

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Answer 1

cos(CKM) = CK/MK = 9/MK

cos(60*) = 0.5

0.5 = 9/MK => MK = 18

18*18 = 9*9 + CM*MC,

MC = корень(18*18-9*9) = 15.6

cos(

0.5 = 15.6/PM => PM = 31.18

PC = корень(31.18*31.18 - 15.6*15.6) = 27