Page 83 - Grade 10 C.Math

;dfwfg
oxfF, lk|Hdsf] cfwf/ ;dafx' lqe'h xf] . h;sf] k|To]s e'hfsf] nDafO 8 ;]=ld= / lk|Hdsf] nDafO
(l) = 14 ;]=ld= 5 .

lk|Hdsf] cfwf/sf] If]qkmn = ju{ PsfO

= ju{ ;]=ld=
= ju{ ;]=ld=

= 1.73 x 16 ju{ ;]=ld=

lqe'hsf] If]qkmn = 27.68 ju{ ;]=ld=

lk|Hdsf] 58\s] ;txsf] If]qkmn (L.S.A) = (3a x l) ju{ PsfO

= (3 x 8) x 14 ju{ ;]=ld=

= 336 ju{ ;]=ld=
]
]
'
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]
\
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]
]
]
lkHdsf k/f ;txsf Ifqkmn (T. S.A) = 2 cf6f lqehsf Ifqkmn ± lkHdsf 58s ;txsf Ifqkmn
]
]
]
]
'
{
= (2 x 27.68 + 336) ju ;=ld=
]
{
= 391.36 ju ;=ld=
Curriculum Development Centre
]

 lk|Hdsf] cfotg (V) = (cfwf/sf] If]qkmn x nDafO_ 3g PsfO
= (27.68 x 14) 3g ;]=ld = 387.52 3g ;]=ld=
pbfx/0f 4
Pp6f lk|Hdsf] k'/f ;txsf] If]qkmn 660 ju{ ;]=ld= / To;sf] cfwf/ ;dsf]0fL lqe'h 5 . o;sf
e'hfx¿sf] gfk j|mdzM cfwf/ e'hf 12 ;]=ld= / s0f{ e'hf 13 ;]=ld= 5 eg] ;f] lk|Hdsf] nDafO
lgsfNg'xf];\ .
;dfwfg
oxfF lk|Hdsf] k'/f ;txsf] If]qkmn (T.S.A) = 660 ju{ ;]=ld=
cfwf/sf] ;dsf]0f lqe'hsf e'hfx¿ j|mdzM s0f{ (h) = 13 ;]=ld= / cfwf/ e'hf (b) = 12 ;]=ld=
/ nDa e'hf (p) = ?
lk|Hdsf] nDafO (h) = ?
kfOyfuf]/; ;fWocg';f/, nDa e'hf (p) PsfO
;]=ld=

80 ul0ft, sIff – 10