Page 62 - Grade 10 C.Math
P. 62
pbfx/0f 4
s'g} a]ngfsf] cfwf/sf] cw{Jof; 7 ;]=ld= / prfO 14 ;]=ld= 5 eg] ;f] a]ngfsf] cfotg
lgsfNg'xf];\ .
;dfwfg
oxfF, a]ngfsf] prfO (h) = 14 ;]=ld=
Curriculum Development Centre
a]ngfsf] cfwf/sf] cw{Jof; (r) = 7 ;]=ld=
a]ngfsf] cfotg (V) = ? h = 14 ;]=ld=
xfdLnfO{ yfxfF 5,
a]ngfsf] cfotg (V) = cfwf/sf] If]qkmn x prfO
= πr h
2
7 ;]=ld=
ju{ 3g ;]=ld=
3g ;]=ld=
= (22 × 7 × 14) 3g ;]=ld=
= 2156 3g ;]=ld=
pbfx/0f 5
Pp6f a]ngfsf] cfwf/sf] If]qkmn 154 ju{ ;]=ld= tyf cw{Jof; / prfOsf] of]ukmn 20 ;]=ld= 5
eg] o;sf] jj|m ;txsf] If]qkmn / cfotg lgsfNg'xf];\ .
;dfwfg
oxfF, a]ngfsf] cfwf/sf] If]qkmn =154 ju{ ;]=ld=
a]ngfsf] cw{Jof; / prfOsf] of]ukmn = 20 ;]=ld=
cyjf, r + h = 20 ;]=ld=
a]ngfsf] jj|m ;txsf] If]qkmn (CSA) = ?
a]ngfsf] cfotg (V) = ?
k|Zgfg';f/, a]ngfsf] cfwf/sf] If]qkmn = 154 ju{ ;]=ld=
cyjf, r
59 ul0ft, sIff – 10