Решение:
Угол:
γ° = 180 - α° - β°
= 180 - 70° - 45°
= 65°
Сторона:
a = c·
= 500·
= 500·
= 500·1.037
= 518.5
Сторона:
b = c·
= 500·
= 500·
= 500·0.7802
= 390.1
Периметр:
P = a + b + c
= 518.5 + 390.1 + 500
= 1408.6
Площадь:
p =
S =√p·(p-a)·(p-b)·(p-c)
=√704.3·(704.3-518.5)·(704.3-390.1)·(704.3-500)
=√704.3 · 185.8 · 314.2 · 204.3
=√8399974069.0764
= 91651.4
Высота :
ha =
=
= 353.53
hb =
=
= 469.89
hc =
=
= 366.61