Answer:
5√2 cm or 7.1 cm
Explanation:
We can use Pythagoras' Theorem:
The square on the diagonal is equal to the sum of the squares of the other two sides.
d² = 5² + 5²
d² = 25 + 25
d² = 50
d = √50
d = √(25×2)
d = 5√2
d≈ 7.1 cm
9.4m questions
12.2m answers