![](https://images.gutefrage.net/media/default/user/8_nmmslarge.png?v=1551279448000)
![](https://images.gutefrage.net/media/default/user/15_nmmslarge.png?v=1551279448000)
Antwort
Lösung für die a)
sin(α) = 4,50m/21m <=> α = arcsin(4,50m/21m) = 12,37°
tan(α) = 4,50m/x <=>
x= 4,50m / tan(α) = 20,51m
dann: tan(18°) = 4,50m/y <=>
y = 4,50m / tan(18°) = 13,85m