Page 63 - Grade 10 C.Math

cyjf, r ;]=ld=

r  ;]=ld=

cw{Jof; (r) = 7 ;]=ld=
Curriculum Development Centre
t/, r +h = 20 ;]=ld=

h = (20 – 7) ;]=ld= = 13 ;]=ld=

jj|m ;txsf] If]qkmn (CSA) = 2πrh

ju{ ;]=ld=

= 44 × 13 ju{ ;]=ld= = 572 ju{ ;]=ld=
k'gM cfotg (V) = πr h
2

3g ;]=ld=
= 22 × 7 × 13 3g ;]=ld= = 2002 3g ;]=ld=

pbfx/0f 6

Pp6f a]ngfsf] cfotg 1584 3g ;]=ld= tyf To;sf] prfO / cw{Jof;sf] km/s 8 ;]=ld= eP ;f]
a]ngfsf] k'/f ;txsf] If]qkmn lgsfNg'xf];\ .
;dfwfg

oxfF, a]ngfsf] cfotg (V) = 1584 3g ;]=ld=

a]ngfsf] prfO / cw{Jof;sf] km/s (h - r) = 8 ;]=ld=

a]ngfsf] k'/f ;txsf] If]qkmn = ?

xfdLnfO yfxf 5,

2
a]ngsf] cfotg (V) = πr h
cyjf

cyjf, 22r h = 1584 × 7
2
cyjf, r (r + 8) = 504
2
cyjf, r + 8r – 504 = 0
3
2

60 ul0ft, sIff –10