Решение:
Угол:
γ° = 180 - α° - β°
= 180 - 45° - 31°
= 104°
Сторона:
a = c·
= 167·
= 167·
= 167·0.7287
= 121.69
Сторона:
b = c·
= 167·
= 167·
= 167·0.5308
= 88.64
Периметр:
P = a + b + c
= 121.69 + 88.64 + 167
= 377.33
Площадь:
p =
S =√p·(p-a)·(p-b)·(p-c)
=√188.67·(188.67-121.69)·(188.67-88.64)·(188.67-167)
=√188.67 · 66.98 · 100.03 · 21.67
=√27392847.061702
= 5233.8
Высота :
ha =
=
= 86.02
hb =
=
= 118.09
hc =
=
= 62.68