STAAR GRADE 8 MATHEMATICSREFERENCE MATERIALS State of Texas

Assessments of Academic Readiness

STAARTM

LENGTH

Customary Metric

1mile(mi)=1,760yards(yd) 1kilometer(km)=1,000meters(m)

1yard(yd)=3feet(ft) 1meter(m)=100centimeters(cm)

1foot(ft)=12inches(in.) 1centimeter(cm)=10millimeters(mm)

VOLUME AND CAPACITY

Customary Metric

1gallon(gal)=4quarts(qt) 1liter(L)=1,000milliliters(mL)

1quart(qt)=2pints(pt)

1pint(pt)=2cups(c)

1cup(c)=8fluidounces(floz)

WEIGHT AND MASS

Customary Metric

1ton(T)=2,000pounds(lb) 1kilogram(kg)=1,000grams(g)

1pound(lb)=16ounces(oz) 1gram(g)=1,000milligrams(mg)

TIME

1year=12months

1year=52weeks

1week=7days

1day=24hours

1hour=60minutes

1minute=60seconds

65

43

21

0Inches8

7

STAAR GRADE 8 MATHEMATICSREFERENCE MATERIALS

CIRCUMFERENCE

Circle orC r= 2π C d= π

AREA

Triangle A h= 12

b

Rectangleorparallelogram A bh=

Trapezoid A b+12 1 2

( )b= h

Circle A r= π 2

SURFACE AREA

Lateral Total

Prism S Ph= S Ph B= + 2

Pyramid S P= l12

S P B= +l12

Cylinder S rh r= +2 2 2π πS rh= 2π

VOLUME

Prismorcylinder V Bh=

Pyramidorcone V Bh= 13

Sphere V r= 3π43

ADDITIONAL INFORMATION

Pi orπ 3 14. π ≈ 227

≈

Pythagoreantheorem a b c2 2 2+ =

10

23

45

67

89

1011

1213

1415

1617

1819

20Cen

tim

eter

s