Решение:
Угол:
γ° = 180 - α° - β°
= 180 - 35° - 35°
= 110°
Сторона:
a = c·
= 1.9·
= 1.9·
= 1.9·0.6104
= 1.16
Сторона:
b = c·
= 1.9·
= 1.9·
= 1.9·0.6104
= 1.16
Периметр:
P = a + b + c
= 1.16 + 1.16 + 1.9
= 4.22
Площадь:
p =
S =√p·(p-a)·(p-b)·(p-c)
=√2.11·(2.11-1.16)·(2.11-1.16)·(2.11-1.9)
=√2.11 · 0.95 · 0.95 · 0.21
=√0.39989775
= 0.6324
Высота :
ha =
=
= 1.09
hb =
=
= 1.09
hc =
=
= 0.6657