Page 82 - Grade 10 C.Math

lk|Hdsf] cfotg (Volume of Prism)
s'g} klg lgoldt (regular) 7f]; j:t'sf] cfotg To;sf] cfwf/sf] If]qkmn / 7f8f]
prfOsf] u'0fg kmn;Fu a/fa/ x'G5 . lk|Hd klg Pp6f lgoldt 7f]; j:t' ePsf] x'Fbf To;sf]

cfotg klg To;sf] cfwf/sf] If]qkmn / 7f8f] prfOsf] u'0fg kmn g} x'G5 .
t;y{ lk|Hdsf] cfotg (V) = lk|Hdsf] cfwf/sf] If]qkmn x lk|Hdsf] nDafO jf prfO
Curriculum Development Centre
V = Al hxfF A = cfwf/sf] If]qkmn / l To;sf] nDafO xf] .

pbfx/0f 2 A

;Fu}sf] lk|Hdsf] k'/f ;txsf] If]qkmn / cfotg lgsfNg'xf];\ .
B C
;dfwfg

oxfF lqe'hsf] cw{ kl/ldlt (s) = ;]=ld= = 11 ;]=ld

lk|Hdsf] nDafO (l) = 21 ;]=ld= 21 ;]=ld=
A'
lk|Hdsf] k'/f ;txsf] If]qkmn (T.S.A) = < 5 ;]=ld=
7
lk|Hdsf] cfotg (v) = ? B' C'
10 ;]=ld=
lqe'hfsf/ lk|Hdsf cfwf/sf]
If]qkmn =   

=   
=   

= 16.25 ju{ ;]=ld=

lbOPsf] lk|Hdsf] k'/f ;txsf] If]qkmn (T.S.A) = pl + 2 cf]6f lqe'hsf] If]qkmn

= 22 x 21 ju{ ;]=ld + 32.5 ju{ ;]=ld=
= (462 + 32.5) ju{ ;]=ld= = 494.5 ju{ ;]=ld=

lk|Hdsf] cfotg (V) = cfwf/sf] If]qkmn x nDafO

V = (16.25 x 21) 3g ;]=ld=

= 341.25 3g ;]=ld=

pbfx/0f 3

Pp6f lqe'hfsf/ lk|Hdsf] nDafO 14 ;]=ld= / To;sf cfwf/sf k|To]s e'hfx¿sf] nDafO
8 ;]=ld= 5 . ;f] lk|Hdsf] k'/f ;txsf] If]qkmn / cfotg lgsfNg'xf];\ .

79 ul0ft, sIff – 10