I have a review question that says: The formula for the circumference of a circle is C = pi x d, where d represents the circle's diameter. Which statementis correct? Would it be D? Wasn't sure if a diameter could have a decimal or fraction.
A. the formula only works if d is 1
B. the formula only works if d is a whole number like 1,2,or 3
C. This formula only works if d is 1 or greater than 1
D. This formula works even if d is a fraction like 1/2 or a decimal like 1.5
Thanks..
I agree with D.
Answer D. Is correct
To determine which statement is correct, let's analyze the formula for the circumference of a circle: C = π x d.
The formula tells us that the circumference of a circle (C) is equal to pi (π) multiplied by the diameter (d). Now, let's evaluate each statement:
A. The formula only works if d is 1: This statement is incorrect. The formula works for any value of d, including when d is not equal to 1. The formula is valid for all circles, not just ones with a diameter of 1.
B. The formula only works if d is a whole number like 1, 2, or 3: This statement is incorrect as well. The formula works for any real number, not just whole numbers. It is essential to understand that the diameter can have a decimal or fraction.
C. This formula only works if d is 1 or greater than 1: This statement is also incorrect. The formula works for any value of d, whether it is equal to 1, less than 1, or greater than 1. There are no restrictions on the range of values for d.
D. This formula works even if d is a fraction like 1/2 or a decimal like 1.5: This statement is correct. The formula is valid for any numerical value of d, including fractions (such as 1/2) and decimals (such as 1.5). There are no limitations on the type of numbers that can be used for the diameter in this formula.
Therefore, the correct answer is D.