Question

The perimeter of a square is 54 cm.Find the length of a diagonal, rounding to the nearest tenth

Answer 1

19.09 = 19.1

Explanation:

we can split the square into two right triangles. Becasue the perimeter of the square is 54cm, we know the each side is 13.5 cm (54cm / 4). Using the pythagoras theorem, the diagonal is 19.1 cm.