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Quiz Chapter 3: Squares, Square Roots, Cubes and Cube Roots

10 questions · Form 1 Mathematics Bab 3: Squares, Square Roots, Cubes and Cube Roots

10 questions · plays in fullscreen

Full Question List & Answer Key

Prefer reading to quizzing? All 10 questions are listed below with the answer and explanation under each one.

1. Find the value of (∛(125))2.

  1. 25
  2. 15
  3. 5
  4. 125
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Answer: A

∛(125) = 5. Then 52 = 25.

2. Evaluate: √(2536)

  1. 56
  2. 256
  3. 536
  4. 65
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Answer: A

√(2536) = √25 / √36 = 56.

3. Calculate the value of √144.

  1. 12
  2. 14
  3. 72
  4. 16
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Answer: A

12 x 12 = 144, so √144 = 12.

4. Which of the following is a perfect square?

  1. 81
  2. 24
  3. 50
  4. 72
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Answer: A

81 = 9 x 9 = 92, making 81 a perfect square.

5. Which of the following statements is TRUE?

  1. The cube root of a negative number is always negative
  2. The square root of any number can be negative in standard principal root evaluation
  3. All even numbers are perfect squares
  4. The square of a negative number is negative
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Answer: A

By definition, the product of three negative numbers remains negative, so ∛(-a) is always negative.

6. Evaluate: √(1 916)

  1. 54
  2. 34
  3. 45
  4. 1 34
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Answer: A

Convert to improper fraction: 1 916 = 2516. √(2516) = 54.

7. Calculate: 32 + ∛(27)

  1. 12
  2. 15
  3. 18
  4. 9
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Answer: A

32 = 9 and ∛(27) = 3. Thus, 9 + 3 = 12.

8. A square garden has an area of 169 m2. What is the length of one side of the garden?

  1. 13 m
  2. 14 m
  3. 12 m
  4. 26 m
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Answer: A

Side length = √Area = √169 = 13 m.

9. Calculate the value of 0.42.

  1. 0.16
  2. 1.6
  3. 0.08
  4. 0.8
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Answer: A

0.4 x 0.4 = 0.16.

10. Calculate the value of ∛(-64).

  1. -4
  2. 4
  3. -8
  4. 8
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Answer: A

(-4) x (-4) x (-4) = -64, so ∛(-64) = -4.

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