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156 10th maths triangle 1 tm power point

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156 10th maths triangle 1 tm power point

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  1. www.Padasalai.Netwww.TrbTnpsc.comKf;Nfhzj;jpd; gz;Gfs;xUjsj;jpy; %d;WNfhl;Lj;Jz;Lfshy; milgLk; cUtk; Kf;Nfhzk; MFk;tiffs;:gf;fq;fisg; nghWj;Jrkgf;fKf;Nfhzk; ,Urkgf;fKf;Nfhzk;mrkgf;fKf;Nfhzk;Nfhzq;fisg; nghWj;JFWq;NfhzKf;Nfhzk;nrq;NfhzKf;Nfhzk;tphpNfhzKf;Nfhzk;

  2. %d;Wgf;fq;fisf; nfhz;lgyNfhzk; Kf;Nfhzk; MFk;ve;jxUgyNfhzKk; mtw;wpd; %iytpl;lq;fis ,izf;Fk;NghJgyKf;Nfhzq;fshfg; gFf;fg;gLfpwJgyNfhzj;jpy; cl;Nfhzq;fspd; $Ljy; = ( n – 2) 180· ,q;Fnvd;gJgf;fq;fspd; vz;zpf;ifMFk;n=3 vdpy; Nfhzq;fspd; $Ljy; = (3 – 2)180·= 1*180·=180·n=4 vdpy; Nfhzq;fspd; $Ljy= (4 – 2)180·= 2*180·=360·

  3. gz;G: 1xUKf;Nfhzj;jpd; %d;WNfhzq;fspd; $Ljy; 180· MFk; A X AYProof: juT: ABC xUKf;Nfhzk; epWtNtz;baJ: ABC + BCA + CAB=180· B Cmikg;G: BCf;F ,izahfAtopNaXY I tiuf

  4. gz;G: 2 Kf;Nfhzj;jpd; VNjDk; xUgf;fj;ijePl;bdhy; Vw;gLk; Kf;Nfhzj;jpd; ntspf;NfhzkhdJmjd; cs;nsjph;f; Nfhzq;fspd; $LjYf;Fr; rkkhFk; AProof: B C DjuT: ΔABCy; BCMdJDtiuePl;lg;gl;Ls;sJ.epWtNtz;baJ: Nfhzk; ACD= Nfhzk; ABC + Nfhzk; CAB

  5. gz;G: 3xUKf;Nfhzj;jpd; VNjDk; ,U gf;fmsTfspd; $Ljy; %d;whtJgf;fmsittplmjpfkhFk;.xUKf;Nfhzj;jpy; rkgf;fq;fSf;FvjpNuAs;sNfhzq;fs; rkk;rkgf;fKf;Nfhzj;jpy; midj;JNfhzq;fSk; rkk; i.e= 60·tbtpaypd; je;ij - A+f;spl;

  6. ΔABC y; Nfhzk; Bkw;Wk; Nfhzk; C ,d; ,Urkntl;bfs; Otpy; re;jpf;fpd;wdvdpy; Nfhzk; BOC= 90·+A/2vdepWTfAO BCA + B + C = 180·A/2 + B/2 + C/2 = 90·B/2 + C/2 = 90· - A/2ΔOBC y; OBvd;gJBd; ,Urkntl;bNfhzk; OBC = B/2OCvd;GjCd; ,Urkntl;bNfhzk; OCB = C/2BOC + OBC + OCB = 180·BOC + B/2 + C/2 = 180·BOC = 180· - B/2 - C/2 BOC = 180· - (B/2+C/2)BOC = 180· - ( 90· - A/2)BOC = 180· - 90· + A/2BOC = 90· + A/2 O

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