Page 70 - Grade 10 C.Math

 r = 7 ;]=ld=

uf]nfsf] cfotg (V)= πr 3g ;]=ld=
3

3g ;]=ld=

Curriculum Development Centre
3g ;]=ld=

3g ;]=ld=

= 1437.33 3g ;]=ld=

pbfx/0f 3

cw{Jof;nfO{ cfwf ubf{ s'g} uf]nfsf] cfotg / ;txsf] If]qkmndf slt slt km/s knf{ < kTtf
nufpg'xf];\ .

;dfwfg

oxfF, uf]nfsf] ;'?sf] cw{Jof; (r ) = x PsfO dfGbf
1
uf]nfsf] ;'?sf] ;txsf] If]qkmn (S.A .) = 4πx ju{ PsfO
2
1
uf]nfsf] ;'?sf] cfotg (V ) = πx 3g PsfO
3
1
cw{Jof; cfwf ubf{{ PsfO

uf]nfsf] ;txsf] If]qkmn ju{ PsfO

ju{ PsfO

2
= πx ju{ PsfO
2
uf]nfsf] ;txsf] km/s = (4πx – πx ) ju{ PsfO = 3πx ju{ PsfO
2
2
cfotg 3g PsfO

3g PsfO

3g PsfO

67 ul0ft, sIff – 10