1) Находим длину AB, суммируя проекции сторон AC и BC:
A
B
=
15
+
27
=
42
2) Проводим высоту из точки C в точку H. Отрезок AH будет равен проекции стороны АС, т.е. 15. 3) Проводим перпендикуляр из середины AB в точку F. 4) Находим длину половины AB, путем деления пополам:
A
B
2
=
42
2
=
21
5) Находим расстояние от середины AB до точки H:
A
B
2
−
A
H
=
21
−
15
=
6
проекции находим AF:
A
F
=
45
⋅
6
27
=
10
7) Находим другую часть, FD, путем вычитания:
F
D
=
C
D
−
A
F
=
45
−
10
=
35
---ответ: на 10 и 35
Объяснение:
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