problem: diagonal of the square 1
The length of a square is 28 feet.
a) calculate the diagonal of the square.
b) calculate the area of the square with the diagonal formula.
answer: diagonal of the square 1
a) diagonal of the square
d = a x √2
d = 28 x √2
d = 39.6 ft
A: The diagonal of the square is 39.6 feet.
b) area
A = d x d : 2
A = 39,6 x 39,6 : 2
A = 784.08 ft²
A: The area of the square is 784.08 square feet.