Page 61 - Grade 10 C.Math
P. 61
pbfx/0f 3
Pp6f a]ngfsf] prfO / cw{Jof;sf] of]ukmn 10.5 ;]=ld= tyf ltgLx¿sf] km/s 3.5 ;]=ld=
eP jj|m ;txsf] If]qkmn lgsfNg'xf];\ .
;dfwfg
oxfF, a]ngsf] cw{Jof; / prfOsf] of]ukmn = 10.5 ;]=ld=
r + h = 10.5 ;]=ld= .......... (i)
a]ngfsf] prfO / cw{Jof;sf] km/s = 3.5 ;]=ld=
h - r = 3.5 ;]=ld= ............ (ii)
jj|m ;txsf] If]qkmn = ?
;dLs/0f (i) / (ii) hf]8bf
h + r = 10.5
h - r = 3.5
2h = 14
Curriculum Development Centre
h=7 ;]=ld=
h sf] dfg ;dLs/0f (i) df k|lt:yfkg ubf{
r = 10.5 - 7 = 3.5 ;]=ld=
a]ngfsf] jj|m ;txsf] If]qkmn (CSA) = 2πrh
ju{ ;]=ld= =154 ;]=ld=
(b) a]ngfsf] cfotg (Volume of Cylinder)
3gfsf/ 7f]; j:t'sf] cfotg kTtf nufpg] ;"qsf] ljZn]if0f ub}{ a]ngfsf] cfotg s;/L
kTtf nufpg ;lsG5, 5nkmn ug'{xf];\ .
a]ngfsf] cfotg (V) = a]ngfsf] cfwf/sf] If]qkmn x a]ngfsf] prfO
= j[Ttsf] If]qkmn x prfO [a]ngfsf] cfwf/ j[Ttfsf/ x'g] ePsfn]]
2
= πr h 3g PsfO
58 ul0ft, sIff –10
