The formula for the area of a circle. Then the correct option is A.
What is an irrational number?
If the value of a numerical expression is terminating then they are the rational number then they are called the rational number and if the value of a numerical expression is non-terminating then they are called an irrational number.
A. The formula for the area of a circle.
In the formula of circle, π is an irrational number, so the resulting area will be irrational.
B. The formula for the area of a trapezoid.
In the formula of trapezoid, all the value are rational number, so the resulting area will be rational.
C. The formula for the area of a triangle.
In the formula of triangle, all the value are rational number, so the resulting area will be rational.
D. The formula for the area of a rectangle.
In the formula of rectangle, all the value are rational number, so the resulting area will be rational.
Then the correct option is A.
More about the irrational number link is given below.
https://brainly.com/question/9466779
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