Ответ:
1)hверх = 90°+90°-60°=120°
2)h ниж = 90°-(90-60) = 60°
A = 75°
h = 90+20-(-5)= 115°
h = 20-(90-(-5))=-65°
A = 45°
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Ответ:
1)hверх = 90°+90°-60°=120°
2)h ниж = 90°-(90-60) = 60°
A = 75°
h = 90+20-(-5)= 115°
h = 20-(90-(-5))=-65°
A = 45°