Question

Which of the following statements are true about radius?

• A. $\text{radius}=\frac{1}{8}\left(\text{diameter}\right)$
• B. $\text{radius}=\frac{1}{9}\left(\text{diameter}\right)$
• C. $\text{radius}=\frac{1}{2}\left(\text{diameter}\right)$
• D. $\text{radius}=\frac{1}{5}\left(\text{diameter}\right)$

Answer 1

The correct option is C

$\text{radius}=\frac{1}{2}\left(\text{diameter}\right)$

Radius : A straight line drawn from the centre to the circumference.

Diameter: A straight line drawn through the centre and having the end points on the circumference.

Diameter = 2$\times$ radius.

$\frac{\text{Diameter}}{2}=\text{radius}$