choose the correct answer

Question

1. If the perimeter of a square is 36 cm, then the area of the square in square centimeters is
   A.81
   B.71
   C.45
   D.5

Answer 1

choose the correct answer

1. If the perimeter of a square is 36 cm, then the area of the square in square centimeters is
   A.81
   B.71
   C.45
   D.5

Since a square has four equal sides, each side of that square has to be 9 cm. The area is
9 cm x 9 cm = 81 cm².

The answer is A.81