Formula Sheet
Grade 9 Applied
Geometric Figure
Rectangle
Perimeter
P=l+l+w+w
l
w
Parallelogram
c
b
Triangle
P = 2(l + w)
h
P = 2(b + c)
c
c
P=a+b+c+d
a
d
h
A=
1
bh
2
A=
(a + b)h
2
A=
Circle
r
bh
2
or
b
d
A=
or
b
Trapezoid
A = bh
or
P=a+b+c
a
A = lw
or
P=b+b+c+c
h
Area
C = πd
1
(a + b)h
2
A = πr
2
or
C = 2πr
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Volume
Geometric Figure
Cylinder
V = (area of base)(height)
r
h
V = πr 2h
Sphere
4 3
V = πr
3
r
Cone
V=
or
4πr3
V=
3
(area of base)(height)
3
h
1
V = πr 2 h
3
r
Squarebased
pyramid
V=
h
b
b
Rectangular prism
h
Triangular prism
(area of base)(height)
3
1
V = b 2h
3
or
2
b h
V=
3
V = lwh
V = (area of base)(height)
h
l
πr2h
V=
3
V = (area of base)(height)
w
l
or
V=
1
blh
2
or
V=
blh
2
b
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