Respuesta :

Answer:

28cm

Step-by-step explanation:

ive done this question before

Answer:

28 cm

Step-by-step explanation:

This is the answer because:

Perimeter = L + W + L + W

Area =  L x W

1) Since the shape is a square, there has to be two of the same factors that multiply.

_ x _ = 49

2) We know 7 x 7 = 49, therefore, w just have to add 7 + 7 + 7 + 7 which equals 28 cm

Therefore, the answer is 28 cm

Hope this helps! :D