Question

1. if the diameter of a circle is 12.4 cm, what is the radius of the circle?

Explanation:

Step1: Recall the relationship between radius and diameter

The formula for the radius \( r \) of a circle in terms of its diameter \( d \) is \( r=\frac{d}{2} \).

Step2: Substitute the given diameter value

Given \( d = 12.4\space cm \), substitute into the formula: \( r=\frac{12.4}{2} \).

Step3: Perform the division

\( 12.4\div2 = 6.2 \).

Answer:

\( 6.2\space cm \)