Question

6.20 i 6.22! PROSZE NA TERAZ DAJE NAJ + 25 PKT ♥

Answer 1

Odpowiedź:

6.20

1. B

2. C

β + β + 40° = 180°

β = 70°

6.22

a)

β = 110°

α = γ = 180° - 110° = 70°

b)

α = 180° - 135° = 45°

α = γ = 45°

β = 180° - (30° + 45°) = 105°

c)

γ = 180° - 70° = 110°

2β + 70° = 180°

β = 55°

2α + 2 · 55° + 110° + 70° = 360°

2α = 70

α = 35°