Таблица 1, номера 2 и 6

Question

Таблица 1, номера 2 и 6

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Answer 1

2
kn = x
mk = 8x

x+ 8x = 180
9x = 180
x = 180/9
x = 20°   ←  kn
mk = 8x = 8 * 20 = 160°

6
KN - биссектриса ∠PKN  ⇒ ∠NKS = 40/2 = 20°

∠MKS = 180 - ∠NKS = 180 - 20 = 160°

Answer 2

2. mk + kn = 180°
8kn + kn = 180°
9kn = 180°
kn = 20°
mk = 180° - 20° = 160°

6. MKP = 180° - 40° = 140°
PKS = SKN = 40°/2 = 20°
140° + 20° = 160°