V = Pp * H
[tex]a)H = 16cm\\ Pp = \frac{(a+b)*h}{2} = \frac{(12+9)*4}{2} = \frac{21*4}{2} = \frac{84}{2} = 42(cm^{2})\\V = 42cm^{2} * 16cm = 672cm^{3}\\b) H = 53cm\\Pp = \frac{a*h}{2} = \frac{25*36}{2} = \frac{900}{2} = 450 (cm^{2})\\V = 450cm^{2} * 53cm = 23850cm^{3}\\c) H = 0,8m = 80cm\\6dm = 60cm\\Pp = \frac{e*f}{2} = \frac{(48+48)*(60+60)}{2} = \frac{96* 120}{2} = 5760(cm^{2})\\V = 5760cm^{2} * 80cm = 460800cm^{3}\\[/tex]
Mam nadzieję że pomogłam i liczę na naj. ♥
