Prealgebra 2e

# C | Geometric Formulas

Prealgebra 2eC | Geometric Formulas

Name Shape Formulas
Rectangle $Perimeter:P=2l+2wArea:A=lwPerimeter:P=2l+2wArea:A=lw$
Square $Perimeter:P=4sArea:A=s2Perimeter:P=4sArea:A=s2$
Triangle $Perimeter:P=a+b+cArea:A=12bhSum of Angles:A+B+C=180°Perimeter:P=a+b+cArea:A=12bhSum of Angles:A+B+C=180°$
Right Triangle $Pythagorean Theorem:a2+b2=c2Area:A=12abPythagorean Theorem:a2+b2=c2Area:A=12ab$
Circle $C=2πrCircumference:orC=πdArea:A=πr2C=2πrCircumference:orC=πdArea:A=πr2$
Parellelogram $Perimeter:P=2a+2bArea:A=bhPerimeter:P=2a+2bArea:A=bh$
Trapezoid $Perimeter:P=a+b+c+BArea:A=12(B+b)hPerimeter:P=a+b+c+BArea:A=12(B+b)h$
Table C1 2 Dimensions
Name Shape Formulas
Rectangular Solid $Volume:V=lwhSurface Area:SA=2lw+2wh+2hlVolume:V=lwhSurface Area:SA=2lw+2wh+2hl$
Cube $Volume:V=s3Surface Area:SA=6s2Volume:V=s3Surface Area:SA=6s2$
Cone $Volume:V=13πr2hSurface Area:SA=πr2+πrh2+r2Volume:V=13πr2hSurface Area:SA=πr2+πrh2+r2$
Sphere $Volume:V=43πr3Surface Area:SA=4πr2Volume:V=43πr3Surface Area:SA=4πr2$
Right Circular Cylinder $Volume:V=πr2hSurface Area:SA=2πr2+2πrhVolume:V=πr2hSurface Area:SA=2πr2+2πrh$
Table C2 3 Dimensions