If the perimeter and the area of a circle are equal numerically, then the diameter of the circle is.
A. 8 units.
B. n units
C. 4 units
D. 2 units.
Answer:C
If the perimeter and the area of a circle are equal numerically, then the diameter of the circle is.
A. 8 units. B. n units C. 4 units D. 2 units.