Square | MCQs

Explanation

The area of a square is calculated using the formula: Area = side × side.

5 cm × 5 cm = 25 cm².

Explanation

The given series is a square of natural number

(1)^2 = 1

(2)^2 = 4

(3)^2 =9

(4)^2 = 16

(5)^2 = 25

(6)^2 = 36

(7)^2 = 42

(8)^2 = 64

Explanation

In MS Excel, the SQRT(number) function is used to calculate the square root of a given number.

Example: =SQRT(25) will return 5.

Explanation

Let the smaller number be x.

The larger number is x + 2.

Given:

x² + (x + 2)² = 100

x² + x² + 4x + 4 = 100

2x² + 4x - 96 = 0

x² + 2x - 48 = 0

(x + 8)(x - 6) = 0

x = -8 or x = 6

If x = -8, larger number = -8 + 2 = -6

If x = 6, larger number = 6 + 2 = 8

Explanation

√2304 = √(48²) = 48

Explanation

Let's calculate:

√25 = 5

√4 = 2

Now, add:

5 + 2 = 7

Explanation

The square root of 16.81 is 4.1, as 4.1 × 4.1 equals 16.81.

It is the correct value when you calculate the square root of 16.81.

Explanation

To find the square root:

√2.56 = √(256/100)

= √(16^2 / 10^2)

= 16/10

= 1.6

Explanation

√15129 = 123, which has 3 digits.

So, the number of digits in the square root of 15129 is 3.

Explanation

To find the square root of 0.0676:

√0.0676 ≈ 0.26