FIGURA Quadrat Rectangle Triangle Trapezi Pemtagon Hexagon Rombe Cercle Sector Circular Corona Circular EXEMP AREA S= L2 S=b·h S=b·h/2 S=B1 ·B2 / 2 · h S=p·a/2 S=p·a/2 S=D1 ·D2 / 2 S=Ï Â· r2 S=Ï Â· r2 ·nº/360º S=Ï Â· (R12 ·R22 ) VOCAVULARI L=Costat B=Base H=alçada B1 = Base gran B2 = Base petita P =perimetre A=apotema D1 =diagonal gran D2 =diagonal petita Ï =PI R= radi Nº= nº Graus R1 = Radi gran R2 =Radi petit Circumferencia L= 2Ï Â· r L= longitut NOTA La circunferencia te Longitut i el cercle te Superficie. RECORDA Ï = 3.14 FIGURA DIBUIX Cub Octaedre Prisma A LATERAL Al=4l2 Al=2ac+ 2cb Al= Pb·h A TOTAL At=6l2 At=2ac+2cb+2bc At=Al·2ab VOLUM VOCAVULARI V= a3 Al= Area lateral V=a·b·c At= Area total V= ab.h V=Volum 1 L=costat A=Aresta A,B,C=dimensions PB=perimetre Base AB=area base Piramide Al=Pb·Ap/2 At= Al+Ab Cilindre Al=2Ï Rg At=Al+2 AB Con Al=Ï Rg At=Al+AB Esfera At=4Ï r2 V= Ab·h/3 AP=apotema piramide V=Ï 3 r2 · h R=radi V=Ï 3 r2 G=generatriu · h/3 V=4/3Ï r3 2