Решение:
Угол:
γ° = 180 - α° - β°
= 180 - 30° - 80°
= 70°
Сторона:
a = c·
= 200·
= 200·
= 200·0.5321
= 106.42
Сторона:
b = c·
= 200·
= 200·
= 200·1.048
= 209.6
Периметр:
P = a + b + c
= 106.42 + 209.6 + 200
= 516.02
Площадь:
p =
S =√p·(p-a)·(p-b)·(p-c)
=√258.01·(258.01-106.42)·(258.01-209.6)·(258.01-200)
=√258.01 · 151.59 · 48.41 · 58.01
=√109836083.81665
= 10480.3
Высота :
ha =
=
= 196.96
hb =
=
= 100
hc =
=
= 104.8