A) The perimeter of an equilateral triangle of side 'S' units is \[\text{S }\!\!\times\!\!\text{ S}\] square units.
B) The area of a square of side 's' units is 4s units.
C) The perimeter of a regular pentagon of side \['l'\] units is \[5l\] units.
D) The area of a circle of radius \['l'\] units is \[4\,l\] square units.
Correct Answer: C
Solution :
The perimeter of a regular pentagon of side \[l\]units is 5\[l\]units.
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