Question

find the side and perimeter of a square whose diagonal is 12cm​

Answer 1

Step-by-step explanation:

Let each side of a square ABCD is x cm.,whose

diagonals AC = BD = 12 cm.

Area of square = x^2 sq.cm.

In right angled triangle ABC

AB^2+BC^2 = AC^2

x^2+x^2= 12^2

2x^2=144

x^2 = 72

Area of square = x^2 = 72 sq.cm. , Answer.

Answer 2

Answer:

th

Step-by-step explanation:

the diagonal = √2×side then...

12 = √2x then...

x = side = 12/√2 = 12√2/2=6√2

then perimeter = 4×6√2

24√2 answer...