Square & Cube Roots
The square root of 4
What is 2
x2 = 1
1
What two perfect square roots does the square root of 68 fall in between?
64 & 81
Is the number 0.4444444... a rational or irrational number? Why?
What formula is used for finding the side length of a square?
A = s2
The cube root of 125
What is 5
g3 = -27
-3
What two perfect square roots does the square root of 132 fall in between?
121 & 144
Is the square root 120 rational or irrational? Why?
Irrational because it is not a perfect square.
What formula is used to find the side length of a cube?
V = s3
The two answers to the square root of 64
What is +8 & -8
m2 = 225
What integer is the square root of 75 closest to?
9
Is the square root of 81 rational or irrational? Why?
The area of a square is 81 square meters. What is the side length of the square?
9 meters
The cube root of -343
what is -7
j3 = 216
6
What integer is the square root of 99 closest to?
10
Is the decimal 3.232232223... rational or irrational number? Why?
Irrational because it is not a terminating or repeating decimal. It can also NOT be turned into a fraction.
The volume of a cube is 343 cubic inches. What is the side length of the cube?
7 inches
How many answers can the square root of a number have? Why?
Two. One positive, one negative
> positive x positive = positive
> negative x negative = positive
h2 = -196
Not possible. You cannot have a negative answer when taking a number squared.
What is the square root of 215 rounded to the nearest tenth?
14.7
What is the difference between rational and irrational numbers?
Rational numbers can be written as a fraction and irrational numbers can not be written as a fraction.
The area of a square is 100 square feet. Using the side length, what is the total length of the square?