The above quadrilateral is a square because of the marking shown for the equilaterality of sides.
We have,
We need to find:
Solution:
x is the side of the square and y is the diagonal. Hence,
And for finding the diagonal which can use the Pythagoras theoram where the leg sides (p and b) are the sides of the triangle. Hence,
➝ y = √13² + 13²
➝ y = √338.
The correct option is Option (D)
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