Question

Use the Pythagorean theorem to find z. Leave your answer as a

simplified radical or as a decimal rounded to the hundredths place.

Answer 1

9√5 or ≈ 20.12

Explanation:

Using the Pythagorean Theorem, which states that c² = a² + b², you can plug in values where x is c or the hypotenuse.

x² = 18² + 9²

x² = 324 + 81

x² = 405

Then, square root to find x.

x = √81 * 5

Take out the 9

x = 9√5 (≈ 20.12)

Hope this helps! :)