Question

go through the above attachment​

Answer 1

Answer:

Let the side of the square be x

All sides of a square are equal

using Pythagoras theorem

Diagonal ²= Side²+ side²

(15√2)²= x²+ x²

450= 2x²

x²= 225

x= 15 m

Hope it Helps

Answer 2

Answer:

15 m I think is the answer