Page 153 - Grade 10 C.Math

(i) AB = 5 cm /]vf tfgf}F . X
F D E C
(ii) laGb' A df sDkf;sf] ;xfotfn]

60° sf] sf]0f BAX lvrf}F .

(iii) sDkf;df 3.5 cm sf] rfk lnP/
Curriculum Development Centre
AX df sf6f}F / sfl6Psf] laGb'nfO{
A
D gfd lbcf}F . B
(iv) laGb' D af6 AB ;Fu ;dfgfGt/ x'g] u/L /]vf PQ lvrf}F .

(v) laGb' D af6 5 cm sf] rfkn] /]vf PQ df lrx\g nufcf}F / sfl6Psf] laGb'nfO{ C gfd
lbcf}F . B / C hf]8f}F . o;/L ;dfgfGt/ rt'e'{h ABCD tof/ eof] .

-u_ k'gM laGb' B df 75° sf] sf]0f lvrf}F h;n] CD nfO{ laGb' F df sf6\5 .

-3_ F af6 5 cm sf] rfkn] CD df sf6L E gfd lbcf}F / B / E hf]8f}F .

ca cfjZos ;=r= ABEF tof/ eof] h;sf] If]qkmn ;dfgfGt/ rt'e'{h ABCD ;Fu a/fa/ x'G5 .

(b) a/fa/ If]qkmn ePsf lqe'hsf] /rgf

ca xfdL b'O{ cf]6f a/fa/ If]qkmn ePsf b'O{ cf]6f lqe'hx¿sf] /rgf s;/L ug{ ;lsG5 To;sf]
af/]df cWoog ub{5f}F .

pbfx/0f 2

PQ = 6.5 cm, QR = 7 cm / PR = 6 cm ePsf] PQR ;Fu a/fa/ If]qkmn x'g] / Pp6f e'hfsf]
gfk 8 cm ePsf] SQR sf] /rgf ug'{xf];\ . P S

;dfwfg

-s_ lbOPsf] cfFs8fcg';f/ gd'gf lrq agfcf}F .
Q R
-v_ lbOPsf] cfFs8fcg';f/ PQR sf] /rgf u/f}F .

-u_ laGb' P df QRP ;Fu a/fa/ x'g] sf]0f RPX lvrL PX || QR lvrf}F . P S X

-3_ laGb' Q af6 8 cm sf] rfkn] PX df sf6f}F /
S gfd lbcf}F . Q / S, S / R hf]8f}F .

o;/L cfjZos SQR tof/ eof] h;sf] If]qkmn

PQR ;Fu a/fa/ x'G 5 . Q R

150 ul0ft, sIff – 10