The perimeter of a square is 4 cm what is the area of the square

The answer would be one.

            1 cm²

Explanation:

            we have a perimeter = P = 4CM

            we know that P = 4L

             So,                       4l = 4

                                       l = 4/4

                                       l = 1

            as we know that square has an equal 4 sides, we have a length L = 1, so it means we have a width W = 1.

           AREA = L × W

                   A = 1 × 1

                  A = 1 cm²         ⇒  (we have perimeter in cm, so we use                         the unit  cm).

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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7.25

step-by-step explanation:

we know that 7 equals to 7.0. we also know that 1/4=0.25. so we can add the two together and we get 7.25