Question

Find the perimeter of square whose area is 49 km?

Answer 1

Answer:

28 km .

Step-by-step explanation:

Area of sq. = 49 sq. km

Each side = √49

= 7 km

Perimeter = 7×4 = 28 km

Answer 2

Step-by-step explanation:

let side be x

area=x×x

so,

x^2=49

x=√49

x=7

perimeter=4×7=28m