CHAPTER
4
MSM Course 3 Flashcards
exponent: The number that indicates how
many times the base is used as a factor.
Chapter 4 (p. 162, 4-1)
23 ⫽ 2 • 2 • 2 ⫽ 8;
3 is the exponent.
exponent
hypotenuse: In a right triangle, the side
opposite the right angle.
Chapter 4 (p. 196, 4-8)
hypotenuse
hypotenuse
irrational number: A number that cannot be
expressed as a ratio of two integers or as a
repeating or terminating decimal.
Chapter 4 (p. 191, 4-7)
irrational number
兹2 , ␲
perfect square: A square of a whole number.
Chapter 4 (p. 182, 4-5)
2
5 ⫽ 25, so 25 is a perfect square.
perfect square
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CHAPTER
4
MSM Course 3 Flashcards
power: A number produced by raising a base
to an exponent.
Chapter 4 (p. 162, 4-1)
3
2 ⫽ 8, so 2 to the
3rd power is 8.
power
Pythagorean Theorem: In a right triangle,
the square of the length of the hypotenuse
is equal to the sum of the squares of the
lengths of the legs.
Chapter 4 (p. 195, 4-8)
13 cm
5 cm
Pythagorean Theorem
12 cm
2
2
5 ⫹ 12 ⫽ 13
2
25 ⫹ 144 ⫽ 169
real number: A rational or irrational number.
Chapter 4 (p. 191, 4-7)
real number
scientific notation: A method of writing very
large or very small numbers by using powers
of 10.
Chapter 4 (p. 174, 4-2)
scientific notation
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