**Areas related to Circles ncert solutions Chapter 12 Exercise 12.1 Question 5**

**5.** Tick the correct answer in the following and justify your choice: If the perimeter and the area of circle are numerically equal, then the radius of the circle is

(A) 2 units (B) units (C) 4 units (D) 7 units

Answer is **(A)**

According to the given condition, we have

units, units

**We ignore r =0 units because if radius of circle is 0 then it becomes a point. Point does not have length, breadth, circumference or area. It is zero dimensional.**

**Therefore, radius of circle = 2 units**