rozwnw jIvn iv`c kMm Awaux vwlIAW vsqUAW ijvyN sMdUk,ie`t,AlmwrI,islMfr,kIp,gyNd Awid AsIN dyKdy hW [hryk vsqU dI smweI huMdI hY[iehnW nUM Tos AwikRqIAW kihMdy hn[ Tos AwikRqIAW keI Akwr dIAW huMdIAW hn[ijvyN Gxwv,Gx,islMfr,SMkU(kon),golw,ArD golw Awid[
Gxwv dy Awieqwkwr Plk huMdy hn Aqy hr do snm`K Plk smwn huMdy hn[ijvyN ie`k AlmwrI,bUtW dw f`bw Awid[ Gxwv dI ku`l sqHw dw Ky.=(2 lb+2bh+2hl) =2(lb+bh+hl) Gxwv dI pwsvIN sqHw dw Ky.= 2hl+2bh =2(l+b)h Gxwv dw Awieqn= lbh
Gx dy Cy smwn vrgwkwr Plk huMdy hn[ijvyN cwh p`qI dw f`bw,k`pVy Dox vwlw swbx Awid[ Gx dI ku`l sqHw dw Ky.= 6 a ¿ 1vrg dw Ky. = 6 ¿ a 2 =6a 2 Gx dI pwsvIN sqHw dw Ky.= 4 a 2 Gx dw Awieqn= a 3 ij`Qy ( a ) Gx dw iknwrw hY[
rozwnw jIvn iv`c AsIN gol QMmH,pwxI dI pweIp,gYs islMfr Awid vylxwkwr cIzw dyKdy hW[iehnW dy dovyN isry c`krwkwr huMdy hn,dovyN c`kr brwbr huMdy hn[ vylx dI sqHw dw Ky.=Awieq dw KyqrPl =lMbweI ¿cOVweI =2 Π rh ku`l sqHw dw Ky.= Awieq dw KyqrPl+do c`krw dw KyqrPl =2 Π rh=2 r 2 =2 Π r(h+r) islMfr dw Awieqn= Π r 2 h
Gx dI pwsvIN sqHw dw KyqrPl= 4a 2 6a 2 (TIk jW glq) Gxwv dw Awieqn=(lM:+cO:+au:) jW (lM:¿cO:¿au:)