Question

Which of the following is not true about a circle?

• A. The radius of a circle always passes trough its centre.
• B. A circle cannot have more than one centre.
• C. A radius need not always touch the boundary.
• D. The centre of a circle is at equal distance from any point on its boundary.

Answer 1

The correct option is C A radius need not always touch the boundary.

A radius is nothing but the distance between any point on the boundary of the circle and its centre. So one of the ends ot the radius always touches the boundary.
All other given options about the circle are true.