Sprendimas: a44oaQ - 1

S__son =

1

/ 2

* (P1+P2)* h__s

S__son =

1

/ 2

* (P1+P2)* h__s $S_{son}$ = $\frac{1}{2}\cdot (P1+P2)\cdot h_{s}$

S__son =

P1* h__s

/ 2

+

P2* h__s

/ 2

$S_{son}$ = $\frac{P1\cdot h_{s}}{2}+\frac{P2\cdot h_{s}}{2}$

S__son = 0.5* P1* h__s+ 0.5* P2* h__s $S_{son}$ = $0.5\cdot P1\cdot h_{s}+0.5\cdot P2\cdot h_{s}$