Here is where you can find the equations on
 the STAAR Reference Sheet.
 STAR
 STAAR GRADE 7 MATHEMATICS
 REFERENCE MATERIALS
 LINEAR EQUATIONS
 Slope-intercept form
 k.
 Constant of proportionality
 CIRCUMFERENCE
 Circle
 C2
 Cd
 AREA
 Triangle
 Rectangle or parallelogram
 Abh
 Trapezoid
 A 30,2
 Cirde
 A-
 VOLUME
 mm ok
 1