GRAD FORMULA SHEET
You may use the following formulas to solve problems on this test.
Area of a Rectangle or a Parallelogram
h
A = bh
h
b
b
Area of a Triangle
Area of a Trapezoid
b1
A=
1
2
bh
A=
h
1
2
h ( b1 + b 2 )
b
b2
Area of a Circle and
Circumference of a Circle
A = πr
2
h
Length of an Arc of a Circle and
Area of a Sector of a Circle
s=
r
C = 2π r
m
360
C
Asector =
m
πr 2
360
r
m
s
where m is the angle
measure in degrees
Volume of a Prism or a Cylinder
r
V = Bh
h
where B is the
area of the base
Pythagorean Therorem
2
2
2
a +b =c
Distance Formula
d=
( x 2 − x 1) 2 + ( y 2 − y1) 2
h
Quadratic Formula
2
−
x = b ± b − 4ac
2a
Trigonometric Relations
sin θ = opposite
hypotenuse
cos θ = adjacent
hypotenuse
tan θ = opposite
adjacent