Approved & Edited by ProProfs Editorial Team
The editorial team at ProProfs Quizzes consists of a select group of subject experts, trivia writers, and quiz masters who have authored over 10,000 quizzes taken by more than 100 million users. This team includes our in-house seasoned quiz moderators and subject matter experts. Our editorial experts, spread across the world, are rigorously trained using our comprehensive guidelines to ensure that you receive the highest quality quizzes.
| By Melmorri
M
Melmorri
Community Contributor
Quizzes Created: 1 | Total Attempts: 505
Questions: 5 | Attempts: 506

Settings

• 1.

### 1. Which number is not a perfect square?

• A.

50

• B.

100

• C.

169

• D.

441

A. 50
Explanation
The numbers 100, 169, and 441 are all perfect squares because they can be expressed as the square of an integer (10, 13, and 21 respectively). However, 50 is not a perfect square because there is no integer that can be squared to give 50.

Rate this question:

• 2.

### A square has an area of 12 cm2. Its side length is

• A.

144 cm

• B.

Between 4 cm and 5 cm

• C.

Between 1 cm and 2 cm

• D.

Between 3 cm and 4 cm

D. Between 3 cm and 4 cm
Explanation
The area of a square is calculated by multiplying the length of one side by itself. In this case, the area is given as 12 cm2. To find the side length, we need to take the square root of the area. The square root of 12 is between 3 and 4. Therefore, the side length of the square is between 3 cm and 4 cm.

Rate this question:

• 3.

### Which square root cannot be expressed as a whole number?

• A.

Square root of 121

• B.

Square root of 125

• C.

Square root of 225

• D.

Square root of 625

B. Square root of 125
Explanation
The square root of 125 cannot be expressed as a whole number because there is no integer that, when multiplied by itself, equals 125. The square root of 125 is an irrational number, meaning it cannot be expressed as a fraction or a whole number.

Rate this question:

• 4.

### The area of a square drawn on side GH would be

• A.

11 square units

• B.

28 square units

• C.

65 square units

• D.

121 square units

C. 65 square units
• 5.

### The unknown side length is approximately

• A.

52 cm

• B.

484 cm

• C.

25.6 cm

• D.

48.4 cm

C. 25.6 cm
Explanation
The correct answer is 25.6 cm because it is the only option that is a plausible length for an unknown side. The other options, 52 cm, 484 cm, and 48.4 cm, are all too large to be a side length of a typical object. Therefore, 25.6 cm is the most reasonable choice for the unknown side length.

Rate this question:

Related Topics