Question

помогите. даю много баллов

Answer 1

<CKM = 180-90-30 = 60*

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(<CMP) = cos(60*) = MC/PM

0.5 = 15.6/PM => PM = 31.18

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