[Massachusetts Comprehensive Assessment System (MCAS) Logo]

Massachusetts Comprehensive Assessment System
Grade 7 Mathematics Reference Sheet

PERIMETER FORMULAS 
square . . . . . . . . . . .[P equals 4 s]
rectangle . . . . . . . . .[P equals two b plus two h or P equals two l plus two w]
triangle . . . . . . . . . .[P equals a plus b plus c]

AREA FORMULAS 
square . . . . . . . . . . .[A equals s squared] 
rectangle . . . . . . . . .[A equals bh or A equals lw]
parallelogram . . . . .[A equals bh]
triangle . . . . . . . . . .[A equals one half bh]
trapezoid . . . . . . . . .[A equals one half h multiplied by b (subscript 1) plus b (subscript 2) in parenthesis]
circle . . . . . . . . . . . .[A equals pi sign r squared]

TOTAL SURFACE AREA FORMULAS 
rectangular prism . .[SA equals two (lw) plus two (hw) plus two (lh)] 
cylinder . . . . . . . . . .[SA equals two pi sign r squared plus two pi sign r h]

VOLUME FORMULAS
rectangular prism. . . . . . .[V equals lwh or V equals Bh
(B equals area of a base)]
cube . . . . . . . . . . . . . . . . . [V equals s cubed (s equals length of an edge)]
cylinder. . . . . . . . . . . . . . .[V equals pi sign r squared h]

CIRCLE FORMULAS 
[C equals two pi sign r or C equals pi sign d]
[A equals pi sign r squared]