Chapter 9 Review

Square Roots

100

What is the square root of 9?

3

200

What is the square root of 16?

4

300

What is the square root of 100?

10

400

What is the square root of 121?

11

500

What is the square root of 1296?

36

Vocabulary

100

What is the hypotenuse in this equation?

a² + b² = c²

c²

200

What is a perfect square?

A number that is the square of an integer. For example, 1, 4, 9 are perfect squares

300

What is a square root?

 A square root of a number n is a number m such that m2 = n.

400

what is a radical expression?

An expression that involves a radical sign.

500

What is the Pythagorean theorem?

The lengths of the legs and the length of the hypotenuse of a right triangle are related by the Pythagorean Theorem

Solve the equation

100

a² = 9?

a = 3

200

a² = 25

a = 5

300

a² = 81

a = 9

400

a² = 144

a = 12

500

a² = 256

a = 16

Pyth. Theorem

100

Solve the equation 

6² + 8² = c²

c=10

200

solve the Equation

7² + 9^{2 =} c²

130=c² (between 11 and 12)

300

Solve the equation

11^{2 +} 4² = c²

137=c² (between 11 and 12)

400

12² + 3² = c²

c² = 153 (between 12 and 13 )

500

 Solve The equation.

36² + 6² = c²

c²= 1332 (between 36 and 37)

Random

100

 What is the square root of 4?

2

200

What is a hypotenuse?

The side of a right triangle opposite the right angle

300

a² = 400

a = 20

400

9² + 8² = c²

c² = 145 (between 12 and 13) approx.12

500

    |

6  |                  c²

    |

    |_______________

        9

c² = 117 (between 10 and 11)