Geometría plana y de volumen

January 6, 2018 | Author: Anonymous | Category: Trabajos y Tareas, Matemáticas
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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

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