Решение:
Угол:
γ° = 180 - α° - β°
= 180 - 93° - 78.1°
= 8.9°
Сторона:
a = c·
= 85·
= 85·
= 85·6.455
= 548.68
Сторона:
b = c·
= 85·
= 85·
= 85·6.325
= 537.63
Периметр:
P = a + b + c
= 548.68 + 537.63 + 85
= 1171.3
Площадь:
p =
S =√p·(p-a)·(p-b)·(p-c)
=√585.66·(585.66-548.68)·(585.66-537.63)·(585.66-85)
=√585.66 · 36.98 · 48.03 · 500.66
=√520796373.77602
= 22821
Высота :
ha =
=
= 83.19
hb =
=
= 84.89
hc =
=
= 536.96