FORMULAS FOR AREAS AND VOLUMES

CIRCLE:

Radius - r

Circumference = 2 π r

Area = π r

SPHERE:

Surface area = 4 π r

Volume = 4/3 π r

SQUARE BASE PYRAMID:

Area of vertical crossection = 1/2 baselength x height

Surface area of sides = 1/2 baselength x slant height

Volume = 1/3 baselength x height