Решение:
Угол:
γ° = 180 - α° - β°
= 180 - 5° - 6°
= 169°
Сторона:
a = c·
= 3·
= 3·
= 3·0.4568
= 1.37
Сторона:
b = c·
= 3·
= 3·
= 3·0.5477
= 1.643
Периметр:
P = a + b + c
= 1.37 + 1.643 + 3
= 6.013
Площадь:
p =
S =√p·(p-a)·(p-b)·(p-c)
=√3.007·(3.007-1.37)·(3.007-1.643)·(3.007-3)
=√3.007 · 1.637 · 1.364 · 0.0070000000000001
=√0.046999638532001
= 0.2168
Высота :
ha =
=
= 0.3165
hb =
=
= 0.2639
hc =
=
= 0.1445