Page 156 - Grade 10 C.Math

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Curriculum Development Centre

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5 cm Q

(iii) R af6 5.5 cm sf] / P af6 7 cm sf] rfk lvrL, sfl6Psf] laGb'nfO{ S gfd lbg'xf];\ .

(iv) P / S, S / R Pjd\ / ljs0f{ QS hf]8\g'xf];\ .

-u_ laGb' R af6 QS ;Fu ;dfgfGt/ x'g] /vf lvRg'xf];\, h;n] PQ nfO{ nDJofPkl5 laGb' T df
sf6\5 .
-3_ laGb' S / T hf]8\g'xf];\ .

-ª_ o;/L cfjZos lqe'h PST aG5 h;sf] If]qkmn rt'e'{h PQRS ;Fu a/fa/ x'G5 .

s'g} b'O{ cf]6f ;dfgfGt/ rt'e'{hx¿ /rgf ubf{ Pp6} cfwf/ cyjf km/s km/s t/ a/fa/
cfwf/df pxL ;dfgfGt/ /]vfx¿lar klg /rgf ug{ ;lsG5 .

cEof; 14

1.(a) e'hfx¿ AB = 4 cm, AD = 6 cm / BAD = 60° ePsf] ;dfgfGt/ rt'e'{h;Fu a/fa/ If]qkmn
x'g] Pp6f sf]0f 45° ePsf] ;dfgfGt/ rt'e'{h /rgf ug'{xf];\ .
(b) Pp6f ;dfgfGt/ rt'e'{hdf AB = 5 cm, AD = 6 cm / ljs0f{ BD = 6 cm 5 . pSt ;dfgfGt/

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rteh;u a/fa/ Ifqkmn xg Pp6f sf0f 75° ePsf ;dfgfGt/ rtehsf /rgf ugxf; .
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(c) Pp6f ;dfgfGt/ rt'e'{hdf b'O{ cf]6f ljs0f{x¿ j|mdzM 6 cm, 4.8 cm / ltgLx¿sf larsf]
sf]0f 30° 5 . pSt ;dfgfGt/ rt'e'{h;Fu a/fa/ If]qkmn x'g] u/L Pp6f ljs0f{ 7.2 cm ePsf]
;dfgft/ rt'e'{hsf] /rgf ug'{xf];\ .
153 ul0ft, sIff – 10