Решение:
Сторона:
b = a·
= 35·
= 35·
= 35·0.6453
= 22.59
Угол:
γ° = 180 - α° - β°
= 180 - 95° - 40°
= 45°
Высота :
hc = a·sin(β°)
= 35·sin(40°)
= 35·0.6428
= 22.5
Сторона:
c = √a2 + b2 - 2ab·cos(γ°)
= √352 + 22.592 - 2·35·22.59·cos(45°)
= √1225 + 510.31 - 1581.3·0.7071
= √617.17
= 24.84
или:
c = a·
= 35·
= 35·
= 35·0.7098
= 24.84
или:
c = b·
= 22.59·
= 22.59·
= 22.59·1.1
= 24.85
Периметр:
P = a + b + c
= 35 + 22.59 + 24.85
= 82.44
Площадь:
p =
S =√p·(p-a)·(p-b)·(p-c)
=√41.22·(41.22-35)·(41.22-22.59)·(41.22-24.85)
=√41.22 · 6.22 · 18.63 · 16.37
=√78191.56515204
= 279.63
Высота :
ha =
=
= 15.98
hb =
=
= 24.76