Question

what is the radius of the circle? 6 cm a 12 cm b 36 cm c 3 cm d 4 cm

Explanation:

Step1: Recall radius - diameter relation

The radius $r$ of a circle is half of its diameter $d$, i.e., $r=\frac{d}{2}$.

Step2: Identify diameter

From the figure, the diameter $d = 6$ cm.

Step3: Calculate radius

Substitute $d = 6$ cm into the formula $r=\frac{d}{2}$, so $r=\frac{6}{2}=3$ cm.

Answer:

C. 3 cm