Решение:
Сторона:
b = a·
= 0.81·
= 0.81·
= 0.81·1.216
= 0.985
Сторона:
c = a·
= 0.81·
= 0.81·
= 0.81·1.233
= 0.9987
Высота :
hc = a·sin(β°)
= 0.81·sin(65°)
= 0.81·0.9063
= 0.7341
Периметр:
P = a + b + c
= 0.81 + 0.985 + 0.9987
= 2.794
Площадь:
p =
S =√p·(p-a)·(p-b)·(p-c)
=√1.397·(1.397-0.81)·(1.397-0.985)·(1.397-0.9987)
=√1.397 · 0.587 · 0.412 · 0.3983
=√0.1345680718844
= 0.3668
Высота :
ha =
=
= 0.9057
hb =
=
= 0.7448