SQUARING the Shed Floor – Using Pythagorean Relation

We the students of Grade VII squared the floor of our shed. We wanted to confirm using the Pythagorean relationship that the corners of our shed are right angles for our shed to be constructed strong and sturdy.
If the Pythagorean Theorem holds, then the sum of square of the sides should be equal to the square of the diagonals.

And this would prove that the corners are at right angles.

We measured the two sides and the containing diagonal of the drawn square.
Upon measuring, the Pythagoras Theorem was found to be true.
This meant that the containing angle is 90°.
This proved the drawn figure is a SQUARE.
So we could go ahead and start building the shed.