Решение:
Угол:
γ° = 180 - α° - β°
= 180 - 33° - 33°
= 114°
Сторона:
a = c·
= 30·
= 30·
= 30·0.5962
= 17.89
Сторона:
b = c·
= 30·
= 30·
= 30·0.5962
= 17.89
Периметр:
P = a + b + c
= 17.89 + 17.89 + 30
= 65.78
Площадь:
p =
S =√p·(p-a)·(p-b)·(p-c)
=√32.89·(32.89-17.89)·(32.89-17.89)·(32.89-30)
=√32.89 · 15 · 15 · 2.89
=√21386.7225
= 146.24
Высота :
ha =
=
= 16.35
hb =
=
= 16.35
hc =
=
= 9.749