Question

when the length of each side of a square is reduced by 5 cm the area become 225 cm . find the side of the given square​

Answer 1

Answer:

let the side of the given square is x cm

when length is reduced by 5 cm then it's length is (x-5)cm

so,

(x-5)^2=225=15^2

x-5=15

x=15+5=20

so the side of the given square is 20 cm