Расчет: tfQBNI - 1
S =
| (a+b)* h |
| / 2 |
|
S =
$$S$$ = $$\frac{(a+b)\cdot h}{2}$$
| (a+b)* h |
| / 2 |
S =
+
$$S$$ = $$\frac{a\cdot h}{2}+\frac{b\cdot h}{2}$$
| a* h |
| / 2 |
| b* h |
| / 2 |
S = 0.5* a* h+ 0.5* b* h$$S$$ = $$0.5\cdot a\cdot h+0.5\cdot b\cdot h$$