Page 18 - Bangladesh_classwiz_BOOK2018_rev_Neat

1.10 g~j` I Ag~j` msL¨v

‡h mKj msL¨v‡K `yBwU c~Y© msL¨vi AbycvZ AvKv‡i cÖKvk Kiv hvq Zv‡`i g~j` msL¨v e‡j| G¸‡jv n‡Z cv‡i
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fMœvsk, mmxg `kwgK msL¨v, c~Y© msL¨v ‡hgb, 7, , 13% A_ev 5.923. †h mKj msL¨v‡K Gfv‡e cÖKvk Kiv
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hvq bv Zv‡`i ejv nq Ag~j` msL¨v| †hgb √2, √7, BZ¨vw` Ag~j` msL¨v| Ag~j` msL¨v `kwgK msL¨vq
1.2
Dc¯’vcb Ki‡j Amxg `kwgK msL¨v nq, hviv Ave„Ë bq| wewfbœ Ag~j` msL¨v †hgb; √2, 2 Ges K¨vjKz‡jU‡i
ûeû Dc¯’vcb Kiv hvq| Avevi `kwgK msL¨vi gva¨‡g Avmbœ gvbI cvIqv hvq| K¨vjKz‡jUi GB Amxg `kwgK
msL¨vi gvb m‡e©v”P `k `kwgK ¯’vb ch©šÍ cÖ`k©b Ki‡Z cv‡i|

‡Kv†bv Ag~j` msL¨vi Avmbœ gvb Rvbvi Rb¨ K¨vjKz‡jUi e¨envi Kiv hvq| Z‡e GB Avmbœ gvbwU cy‡ivcywi mwVK
bq|

Dc‡ii cÖ_g w¯Œb n‡Z †`Lv hv‡”Q †h 5.923 GKwU g~j` msL¨v Aciw`‡K √3 GKwU Ag~j` msL¨v| GLb hw`

√3 Gi K¨vjKzjU‡i cÖvß Avmbœ gvbwU‡K wb‡q eM© Kiv nq, Zvn‡j †`Lv hv‡e GwU wKQzUv eo wQj-

hw` K¨vjKz‡jUi `kwg‡Ki ci GKB msL¨K A¼ wb‡q c~e©eZx© †QvU Avmbœ gvbwU cÖ`k©b KiZ Zvn‡j Gi eM© 3 Gi
†P‡q wKQzUv †QvU n†Zv hv Dc‡ii Wvb w`‡Ki w¯Œ‡b cÖ`wk©Z n‡q‡Q|

Dc‡ii `yBwU w¯Œb n‡Z GwU cwi®‹vifv‡e †evSv hvq †h, 1.732050807 < 1.732050808. K¨vjKz‡jUi

1.732050808 msL¨vwU cÖ`k©b K‡i hv †_‡K †evSv hvq †h, Amxg `kwgK msL¨vwU 1.732050807 Gi †P‡q
1.732050808 Gi AwaK wbKUeZ©x|

Z‡e gRvi welq n‡jv GB †h, hw`I Ag~j` msL¨v‡K Dc¯’vcb Kivi Rb¨ `kwg‡Ki c‡i Amxg msL¨K N‡ii cÖ‡qvRb
z
c‡i ZeyI wKQ wKQz Ag~j` msL¨vi ¸Ydj n‡jv g~j` msL¨v| wb‡P wKQz D`vniY †`Iqv n‡jv-

Dc‡ii cÖ_g `yBwU w¯Œ‡b Amxg `kwgK msL¨vi Avmbœ gvb cÖ`wk©Z n‡q‡Q| KviY √5 Ges √20 `yBwU msL¨vB
Ag~j`| wKš‘ Zv‡`i ¸Ydj √100 = 10 hv GKwU c~Y© msL¨v weavq g~j` msL¨v| cÖ_g `yBwU w¯Œ‡b Avmbœ gvb
cÖ`wk©Z n‡q‡Q| †hLv‡b Z…Zxq w¯Œ‡b cÖK…Z gvb †`Lv‡bv n‡q‡Q| GKB fv‡e †`Lv‡bv hvq †h, ‡Kv‡bv Ag~j` msL¨vi

wKQz wKQz Ag~j` Nv‡Zi Rb¨ c~Y msL¨v cvIqv hvq|
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