Решение:
Угол:
γ° = 180 - α° - β°
= 180 - 45° - 45°
= 90°
Сторона:
a = c·
= 3000·
= 3000·
= 3000·0.7071
= 2121.3
Сторона:
b = c·
= 3000·
= 3000·
= 3000·0.7071
= 2121.3
Периметр:
P = a + b + c
= 2121.3 + 2121.3 + 3000
= 7242.6
Площадь:
p =
S =√p·(p-a)·(p-b)·(p-c)
=√3621.3·(3621.3-2121.3)·(3621.3-2121.3)·(3621.3-3000)
=√3621.3 · 1500 · 1500 · 621.3
=√5062305802500
= 2249957
hb =
=
= 2121.3
hc =
=
= 1500