The area of a rectangle is length x width. In the special case of a square, length is the same as width, so you multiply (in this case) 5 x 5.
It is 25 square cm
twenty five
25 square centimetres !
20cm/4sides = 5cm 5cm*5cm = 25cm^2
25 square centimeters.
50 square centimetres
The area was approx 19.6 square units.
Area = 5*5 = 25 square cm
Each side is 5cm
78.5 square cm
Multiply the length of any side by itself ("square" it). To find the are of any rectangle, including a square you multiply the length by the width, e.g. if it is a 5cm square the area is 5x5=25cm2. If it's a rectangle with a 3cm x 5cm the area is 3x5 = 15cm2.
The area of 23cm by 5cm is 115 square cm.