Mathematics Reference Sheet
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1
2Grades 9-10
Mathematics Reference Sheet
Area
KEY
1
A =
bh
Triangle
2
b = base
d = diameter
h = height
r = radius
l
= length
A = area
A =
l w
Rectangle
w = width
C = circumference
l = slant height
V = volume
1
S.A. = surface area
A =
h (b
+b
)
Trapezoid
1
2
2
22
for π.
Use 3.14 or
7
A =
bh
Parallelogram
π r
2
A =
Circle
Circumference
C = πd = 2πr
Volume
Total Surface Area
l
l
1
Right Circular
1
+ πr
πr
+ πr
π r
2 =
2
2
(2πr)
V =
h
S.A. =
3
2
Cone
l
l
1
1
2 =
2
S.A. = 4(
l
) + l
2l
+ l
V =
l wh
Square Pyramid
3
2
4
π r
3
2
V =
S.A. = 4πr
Sphere
3
Right Circular
V = π r
2
2
S.A. = 2πrh + 2πr
h
Cylinder
S.A. = 2(l w) + 2(hw) + 2(l h)
V = l wh
Rectangular Solid
In the following formulas, n represents the number of sides.
In a polygon, the sum of the measures of the interior angles is equal to 180 ( n − 2 ).
In a regular polygon, the measure of an interior angle is equal to 180 ( n − 2 )
.
n
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