Chapter 8 - Geometry - 8.8 Pythagorean Theorem - 8.8 Exercises - Page 594: 29

Unknown length of the triangle $\approx 14.0$ cm

Let $x =$ unknown length of the triangle $a^{2} + b^{2} = c^{2}$ $17^{2} + x^{2} = 22^{2}$ $289 + x^{2} = 484$ $x^{2} = 195$ $x = \sqrt 195$ $x = 13.964...$ $x \approx 14.0$ cm