The length of the circumference: C = 2ℼr
The area of a circle: A = ℼr
2
Volume of prism or cylinder: V = Base ∗ height;
Volume of pyramid or cone: V = Base ∗ height ÷ 3
Exponent rules
Multiplication Rule:
a
m
a
n
= a
m+n
Division Rule:
a
m
/a
n
= a
m-n
Power of a Power Rule:
(a
m
)
n
= a
mn
Power of a Product Rule:
(ab)
m
= a
m
b
m
Power of a Quotient Rule:
(a/b)
m
= a
m
/b
m
Zero Exponet Rule:
a
0
= 1
Negative Exponet Rule:
a
-m
= 1/a
m
Fractional Exponet Rule:
a
m/n
=
n
√
a
m