Answer: 1️⃣ 40
Step-by-step explanation:
x - is the side of the square
[tex]x^{2} +x^{2} =(10\sqrt{2})^{2} \\2x^{2}} =200\\2x^{2} \div 2=200 \div 2 \\x^{2} =100\\x=\sqrt{100} \\x=10 \: [cm] - side \: of \: a \: square[/tex]
Find the perimeter of the square.
Perimeter of the square = 4 × 10 cm = 40 cm
