Respuesta :

Answer:  The formula for the area of a circle.


Step-by-step explanation:

1. The formula for calculate the area of a circle is:

[tex]A=r^{2}\pi[/tex]

Where r is the radius of the circle.

2. By definition, the number π is an irrational number, because it cannot be expressed as a simple fraction. Therefore, if you want to calculate the area of a circle, the result will be an irrational number.

3. Then, the answer is the first option.


Answer:

Option A

Step-by-step explanation:

Formula for area of circle = [tex]\pi r^2[/tex]

Formula for area of trapezoid =[tex]\frac{base1+base2}{2}*height[/tex]

Formula for area of triangle = [tex]\frac{base*height}{2} [/tex]

Formula for area of rectangle = Length * width

[tex]\pi[/tex] is an irrational number

The formula for area of circle contains [tex]\pi[/tex] an irrational number which results in an irrational number

so option A is correct