the length of th diagonal is 10√2
Explanation:
side length = 10 inches
We need an illustration to solve the question:
Using pythagoras' theorem:
Hypotenuse² = opposite² + adjacent²
hypotenuse = diagonal
opposite = 10 in, adjacent = 10 in
diagonal² = 10² + 10²
diagonal² = 100 + 100
diagonal² = 200
diagonal = √200
diagonal = 10√2
Hence, the length of th diagonal is 10√2
