Расчет: we5V4Z - 1
r =
| (a+b-c) |
| / 2 |
|
r =
$$r$$ = $$\frac{a+b-c}{2}$$
| (a+b-c) |
| / 2 |
r =
+
-
$$r$$ = $$\frac{a}{2}+\frac{b}{2}-\frac{c}{2}$$
| a |
| / 2 |
| b |
| / 2 |
| c |
| / 2 |
r = 0.5* a+ 0.5* b- 0.5* c$$r$$ = $$0.5\cdot a+0.5\cdot b-0.5\cdot c$$