Решение:
Угол:
γ° = 180 - α° - β°
= 180 - 80° - 68 °
= 32°
Сторона:
a = c·
= 63·
= 63·
= 63·1.858
= 117.05
Сторона:
b = c·
= 63·
= 63·
= 63·1.75
= 110.25
Периметр:
P = a + b + c
= 117.05 + 110.25 + 63
= 290.3
Площадь:
p =
S =√p·(p-a)·(p-b)·(p-c)
=√145.15·(145.15-117.05)·(145.15-110.25)·(145.15-63)
=√145.15 · 28.1 · 34.9 · 82.15
=√11693818.660025
= 3419.6
Высота :
ha =
=
= 58.43
hb =
=
= 62.03
hc =
=
= 108.56