Which of the following statement is true?

The correct option is 1.

Step-by-step explanation:

If a number is defined as , where p and q are distinct integers and q≠0, then it is called a rational number.

For example: 0.2, 3/4, 5%.

If a number can not be defined as , where p and q are integers and q≠0, then it is called an irrational number.

For example: √2, √3, √(0.3).

The given numbers can be written as

Since is the product of two irrational numbers , therefore is an irrational number.

If any numbers is divisible by an irrational number, then the resultant number is irrational. So, is an irrational number.

Both and are irrational. Therefore the correct option is 1.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6