Question

The length of a rectangle is 5 units and its width is 4 units. What is the approximate length of the diagonal of the rectangle?

5 units
6.4 units
8.5 units
9 units

Answer 1

@openstudy_girl2

Answer 2

Use the Pythagorean theorem

\(a^2 + b^2 = c^2\)

\(5 ^2 + 4^2 = c^2\)

\(25 + 16 = c^2\)

\(c^2 = 41\)

\(c = sqrt{41} \approx 6.4\)

Answer: 6.4 units