Question

Find the area of square whose one diagonal is 2 cm

Answer 1

Hi Mate

Let the length of it's sides be = x

4 = 2x²

x = √ 2

Area of square = x²

So,Area of square = 2 cm²

Answer 2

using pythagourus theorem

A2 +A2 =4

2A2 = 4

A2 =2

area of sq = side . side

                = a2

                =2