Page 53 - Grade 10 C.Math

pbfx/0f 2

lbOPsf] ;dsf]0f lqe'hsf] If]qkmn lgsfNg'xf];\ M A

;dfwfg
oxfF, s0f{ (AB) = 5 ;]=ld=
lbOPsf]] rt'e'{hsf] If]qkmn lgsfNg'xf];\ .Development Centre
cfwf/ (BC) = 4 ;]=ld= 5 ;]=ld= ?
prfO (AC) = ?

;dsf]0f lqe'h ABC sf] If]qkmn = ?
B C
4 ;]=ld=

AC = AB - BC [ kfOyfuf]/; ;fWocg';f/ ]
2
2
2
= (5 ;]=ld=_ – -4 ;]=ld=_ 2
2
2
= 25 ;]=ld= – 16 ;]=ld= 2
= 9 ;]=ld=
2
AC = 3 ;]=ld=
ca ABC sf] If]qkmn = x cfwf/ x nDa

= x 4 ;]=ld= x 3 ;]=ld= = 6 ju{ ;]=ld=

pbfx/0f 3 A 4.5 ;]=ld= B
Curriculum 4.5 ;]=ld=

;dfwfg 4 ;]=ld=

oxfF, rt'e'{hdf b'O{ cf]6f ;dlåafx' lqe'h 5g\ .

dfgf}F, a = 4.5 ;]=ld= / a = 4 ;]=ld=
2
1
b = 3 ;]=ld= / b = 3 ;]=ld= D 4 ;]=ld= C
2
1
rt'e'{h ABCD sf] If]qkmn = ABD sf] If]qkmn + BCD sf] If]qkmn

rt'e'{hsf] If]qkmn

ju{ ;]=ld=

ju{ ;]=ld=

ju{ ;]=ld=

50 ul0ft, sIff – 10