Diagonal forms right triangle, with sides of square as two of the sides. Use Pythagorean theorem.
a^2 + b^2 = (10√2)^2
However, since a = b,
2a^2 = (10√2)^2
Perimeter = 4a
I'll leave the calculations for you.
If the diagonal of a square has a length of 10 suare root of 2 cm, find the area of the square and the perimeter of the square.
2 answers
50