Решение:
Угол:
γ° = 180 - α° - β°
= 180 - 58° - 113°
= 9°
Сторона:
a = c·
= 143·
= 143·
= 143·5.422
= 775.35
Сторона:
b = c·
= 143·
= 143·
= 143·5.886
= 841.7
Периметр:
P = a + b + c
= 775.35 + 841.7 + 143
= 1760.1
Площадь:
p =
S =√p·(p-a)·(p-b)·(p-c)
=√880.03·(880.03-775.35)·(880.03-841.7)·(880.03-143)
=√880.03 · 104.68 · 38.33 · 737.03
=√2602466670.8424
= 51014.4
Высота :
ha =
=
= 131.59
hb =
=
= 121.22
hc =
=
= 713.49