What is the length of a diagonal of a square if its area is square feet?
Find the length of a diagonal of a square if its area is square feet.
Apply the area formula to find the side of the square,
Area of a square:
We can use any one of the sides for the calculation because they all have identical magnitudes.
units.
Because all sides are equal,
Hence, we know that and units Then,
The right triangle Pythagoras Theorem :
By using the calculator,
Therefore, the diagonal length is nearly feet.