Obliczenie: gP00ow - 1

S_boc  = 
 
 1
/ 2
* (P1+P2)* h_s
S_boc =  
 1
/ 2
* (P1+P2)* h_s
$$S_{boc}$$ = $$\frac{1}{2}\cdot (P1+P2)\cdot h_{s}$$
S_boc =  
 P1* h_s
/ 2
+ 
 P2* h_s
/ 2
$$S_{boc}$$ = $$\frac{P1\cdot h_{s}}{2}+\frac{P2\cdot h_{s}}{2}$$
S_boc =  0.5* P1* h_s+ 0.5* P2* h_s$$S_{boc}$$ = $$0.5\cdot P1\cdot h_{s}+0.5\cdot P2\cdot h_{s}$$