Question

please answer please answer please please​

Answer 1

Answer:

the answer is (b) 40√2

Step-by-step explanation:

the perimeter of square is 4×side

4×10√2=40√2

Answer 2

Answer:

Let ABCD is a square and AC is diagonal.

So, angle ACB =angle ACD  = 45°

AC = 10√2

In Triangle ABC, AC is a diagonal

sin ∅ = perpendicular/ hypotenuse = BC/AC

sin 45° = BC/10√2

   1/√2 =  BC/10√2

      BC = 10

Perimeter of square = 4 s  = 4 *10

Perimeter of square = 40