Решение:
Угол:
γ° = 180 - α° - β°
= 180 - 1.79° - 90°
= 88.21°
Сторона:
a = c·
= 12·
= 12·
= 12·0.03126
= 0.3751
Сторона:
b = c·
= 12·
= 12·
= 12·1.001
= 12.01
Периметр:
P = a + b + c
= 0.3751 + 12.01 + 12
= 24.39
Площадь:
p =
S =√p·(p-a)·(p-b)·(p-c)
=√12.19·(12.19-0.3751)·(12.19-12.01)·(12.19-12)
=√12.19 · 11.8149 · 0.18 · 0.19
=√4.9256081802
= 2.219
Высота :
ha =
=
= 11.83
hb =
=
= 0.3695
hc =
=
= 0.3698