Page 184 - Grade 10 C.Math

(d) b'O{ l;wf vDafx¿ 60 ld6/sf] b'/Ldf 5g\ . klxnf] vDafsf] 6'Kkf]sf] cjglt sf]0f, 150 m

prfO ePsf] bf];|f] vDafsf] 6'Kkf]af6 x]bf{ 30° sf] kfOof] eg] klxnf] vDafsf] prfO
kTtf nufpg'xf];\ .

5.(a) 1.54 ld6/ cUnf] dflg;n] 30m sf] b'/Ldf /x]sf] 53.5 m :tDesf] 6'Kkf] cjnf]sg ubf{ aGg]

pGgtf+z sf]0f kTtf nufpg'xf];\ .
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(b) cjnf]sg laGb'af6 af6 240 m k/ /xsf] 80 3 m cUnf] w/x/fsf] 6'Kkf] cjnf]sg ubf{ aGg]
pGgtf+z sf]0f kTtf nufpg'xf];\ .

(c) Ps hgf dflg; :tDesf] 6'Kkf]af6 cufl8 /x]sf] 3/sf] 5t cjnf]sg ub{5 . :tDe /
3/sf] prfO j|mdzM 60m / 25m 5 / tL b'O{larsf] b'/L 35m 5 eg] dflg;n] agfPsf]

cjglt sf]0f lgsfNg'xf];\ .

(d) lgdfn] 53.6m cUNff] ?vsf] 6'Kkf]af6 e'OFdf /x]sf] af3 cjnf]sg ub{5 . olb ?v /
af3larsf] b'/L 30.95 m eP ?vsf] 6'Kkf]af6 lgdfn] af3 x]bf{ aGg] cjglt sf]0f kTtf
nufpg'xf];\ .

(e) 30m cUnf] ljb\ofno ejgsf] 5tdf hfgsf] lgldTt 30° sf] e'msfjdf ¥ofDk agfpg' k¥of]
eg],

(i) ;f] ¥ofDksf] nDafO slt xf]nf <

(ii) ljb\ofno ejg / ¥ofDksf] k]mb larsf] b'/L slt xf]nf <

6. b'O{ b'O{ hgfsf] ;d"x agfpg'xf];\ . k|To]s ;d"xn] ljb\ofno If]q jl/kl/sf ?vx¿,
dlGb/x¿, u'Dafx¿, rr{x¿ / cGo ejgx¿sf] lqsf]0fldtLo ljlwaf6 prfO kTTff

nufpg'xf];\ . o;/L ;d"xn] u/]sf sfo{nfO{ lrq;lxt sIffdf k|:t't ug{'xf];\ .

181 ul0ft, sIff – 10