Page 81 - Grade 10 C.Math

pbfx/0f 1
lbOPsf] lqe'hfsf/ lk|Hdsf] j|m; ;]S;g, 58\s] ;txsf] If]qkmn / k'/f ;txsf] If]qkmn
lgsfNg'xf];\ .

;dfwfg

oxfF lqe'hsf ltg cf]6f e'hfx¿sf] gfk a = 5 ;]=ld=
Curriculum Development Centre
b = 4 ;]=ld

c = 3 ;]=ld=
j|m; ;]S;g
4 ;]=ld=
nDafO (l) = 15 ;]=ld=
15 ;]=ld=
3, 4 / 5 kfOyfuf]l/og lqkb x'g\ t;y{ b = nDa tyf c = cfwf/ x'g\ .

j|m; ;]S;gsf] If]qkmn (C.S.A) = x cfwf/ x prfO

= ( x 3 x 4) ju{ ;]=ld=

= 6 ju{ ;]=ld=

j|m; ;]S;gsf] If]qkmn = lk|Hdsf] cfwf/sf] If]qkmn

b'O{ cf]6f ljk/Lt 5]psf ;txx¿sf] If]qkmn = 2(j|m; ;]S;gsf] If]qkmn_
= 2 x 6 ju{ ;]=ld=

= 12 ju{ ;]=ld=

58\s] ;txsf] If]qkmn = l(a + b + c) = lp hxfF p = a + b + c

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{
k/f ;txsf Ifqkmn (T.S.A.) = 58s ;txsf Ifqkmn ± bO cf6f ljk/Lt 5psf ;txx¿sf Ifqkmn
]
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\
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= pl + 2( x b x c)
= [(3 + 4 + 5) x 15 + 4 x 3] ju{ ;]=ld=
= [(12) 15 + 12] ju{ ;]=ld=
= 192 ju{ ;]=ld=

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