Page 71 - Grade 10 C.Math

cfotgsf] km/s

3g PsfO

3g PsfO
Curriculum Development Centre
3g PsfO

o;/L b]lvg] km/snfO{ cg'kftsf] ¿kdf klg JoSt ug'{xf];\ .

pbfx/0f 4

cw{Jof; j|mdzM 3 ;]=ld=, 5 ;]=ld= / 7 ;]=ld= ePsf ltg cf]6f uf]nfx¿nfO{ kufn]/ Pp6} uf]nf

agfpFbf gofF uf]nfsf] Jof; slt x'G5, lgsfNg'xf];\ .

;dfwfg

oxfF, klxnf] uf]nfsf] cw{Jof; (r ) = 3 ;]=ld=
1
bf];|f] uf]nfsf] cw{Jof; (r ) = 5 ;]=ld=
2
t];|f] uf]nfsf] cw{Jof; (r ) = 7 ;]=ld=
3
V , V , V nfO{ j|mdzM ltg cf]6f uf]nfsf] cfotg dfGbf
1 2 3
s'n cfotg (V) = V + V + V 3g PsfO
1 2 3

3g ;]=ld=

3g ;]=ld=

3g ;]=ld=

ca, gofF uf]nfsf] cw{Jof; R dfGbf,

3g ;]=ld=

R = 495 3g ;]=ld=
3
3g ;]=ld=

= 7.91 3g ;]=ld=

ctM Jof; (d) = 2R = 2 x 7.91 ;]=ld= = 15.82 ;]=ld=

68 ul0ft, sIff –10