Rectangle
Area =
Perimeter = 2 + 2
lw lw
w
l
Parallelogram
Area =
bh
b
h
Triangle
h
b
Area =
bh
Circle
r
Area =
Circumference = 2
rr
2
Geometry
Reference Sheet
Pythagorean Theorem
abc
222
+=
b
a
c
Trapezoid
Area = – ( + )
1
2
hb b
12
b
1
b
2
h
Cube
s
Volume =
Surface Area =6
ss
2
3
Cylinder
h
rr
Volume =
Surface Area = 2 + 2
Lateral Area = 2
rh rrh
rh
2
2
DISTANCE BETWEEN
TWO POINTS:
SUM OF INTERIOR ANGLES
OF AN -SIDED POLYGON:n
d=(–)+ (–)xx yy
21
2
21
2
180 ( 2)n–
MID-POINT BETWEEN
TWO POINTS: ( )
xx
12
+
2
yy
12
+
2
,
Sphere
Volume = 4
–
3
r
3
Surface Area =4
r
2
rr
h
Right Prism
Volume = base area ×
h
Surface Area = base areas + face areas
Rectangular Solid
l
w
h
Volume =
Surface Area =2 + 2 + 2
wh whwh
lll
Lateral Area = 2( + )
lwh
Lateral Area = sum of face areas
Lateral Area =
rs
Right Pyramid
Volume = – × base area ×
1
3
h
Surface Area = base area + face areas
h
Volume = –
1
3
rh
2
Surface Area =
rrs
2+
Cone
s
h
r
Sector of Circle
Arc Length = circumference × central angle
360º
Sector Area = total area × central angle
360º
r
central
angle
Trigonometry Formulas
Area = – sin
1
2
ab C
Law of cosines: = + – 2 (cos )
ba c ac B
222
Law of sines: = =
a
sin
Ab
sin
Bc
sin
C
A
B
C
a
b
ch
