浙教版八年级数学上册知识点梳理

[][][][]()[][]180[][].[]..[][]SSS(SAS)ASAAASHL1----(SSS)SAS)(2):---(HL)(ASA)(SAS)(AAS)(AAS)(HL)(3):---(ASA)(AAS)[][].OPAOBPMOAMPNOBNPM=PN[]PMOAMPNOBNPM=PNOPAOB[]1)234ABCPMNO[][]?[][][]12[][]121.2.[]1234[][]?60[]12360[]1.2.[].112321c22c22ba32c=22baABCC2c22baABC322ba=2c13452512133681048151757242569,40,41222cba::::222cba.1.()()..(1):(2)(3)23x41x5.:,,.:,(1)(2)1abbcac2()3()4()(1)1(2)1(3)(4)3()10.(1)()1(2)1()()1.2.(1)(2)(3)(4)(5)1.12()3.12123231234511,xyxyxyx0y0x0y0x0y0x0y=0Xx=0y0Yx=0y=0x=0y0Yx0y=0Xx0y01.A(x,y).1)xy=0A___2)xy0A___________3)xy0A________________.2.x______0y______03._____________________________________4.x______y______5.P,xyx__y__y__x_____________________________________________________________PxyPxyaPxayPxayPxyaaaaa12xyxyxyyx*YXXY311.2030425679y=kx(kk0)k.y=kx(k)kx1bk0y=kxxyk0?y=kxxy(1)y=kxkk0(2)001k(3)k0k0?(4)k0yxk0yx(5)|k|y|k|x10y=kxb(k,bk0)yx.b=0y=kxby=kx.y=kx+b(k)kx1by=kx+b0b-kb0y=kx+b,y=kx|b|.b0b01y=kx+b(kbk0)20b-kb03k0k0b0b000bk00bk00bk00bk4k0yxk0yx.5|k|y|k|x.6b0y=kxbb0y=kxb.11y=kxb..0b.0.b0b0b=0k0yxk0yx12y=kxby=kx|b|b0b0.13y=k1x+b1y=k2x+b21k1=k2b1b22k1k23k1=k2b1=b21412xy34.15ax+b=0aba00.y=ax+bx.(6)16ax+b0ax+b0aba00.