Решение:
Угол:
γ° = 180 - α° - β°
= 180 - 45° - 26.5°
= 108.5°
Сторона:
a = c·
= 17.47·
= 17.47·
= 17.47·0.7457
= 13.03
Сторона:
b = c·
= 17.47·
= 17.47·
= 17.47·0.4705
= 8.22
Периметр:
P = a + b + c
= 13.03 + 8.22 + 17.47
= 38.72
Площадь:
p =
S =√p·(p-a)·(p-b)·(p-c)
=√19.36·(19.36-13.03)·(19.36-8.22)·(19.36-17.47)
=√19.36 · 6.33 · 11.14 · 1.89
=√2580.21596448
= 50.8
Высота :
ha =
=
= 7.797
hb =
=
= 12.36
hc =
=
= 5.816