Applying the Pythagorean theorem, the diagonal of the rectangle is: 9.5 inches.
How to Find the Diagonal of a Rectangle?
The diagonal of a rectangle based on the Pythagorean theorem equals sum of the squares of its length and width.
Given the following:
- Length (a) = 9 inches
- Width (b) = 3 inches
- d = diagonal
Diagonal = √(9² + 3²)
Diagonal ≈ 9.5 inches.
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