Question

Choose the correct answer and justify your choice:
If the perimeter and the area of a circle are numerically equal, then the radius of the circle is:
(a) 2 units
(b) Pie units
(c) 4 units
(d) 7 units​

Answer 1

Solution:

Given,

2pi.r = pi.r²

=> 2 = r

. ' . (a) 2 units is the right Answer