The area of a square is 30.25 cm². Find its perimeter (in cm).
1). 44
2). 23
3). 22
4). 46
We know, area of a square = a2
⇒ a2 = 30.25
⇒ a = 5.5
∴ Perimeter of a square = 4a = 4 × 5.5 = 228. The area of an equilateral triangle is 9√3 sq cm, find its perimeter?