OE


In order to figure out the area of square ABDE, we need to know the length of one of its sides. We can get the length of BD by using the isosceles right triangle attached to it. BD is the hypotenuse, which means its length is \(7 \sqrt{2}\)

To get the area of the square, we have to square the length of the side we know, or \(7 \sqrt{2} * 7\sqrt{2} =49*2=98\)