### Home > CCA2 > Chapter Ch5 > Lesson 5.1.1 > Problem 5-10

5-10.

Nossis has been working on his geometry homework and he is almost finished. His last task is to find a solution of *x* could be! Explain how he can find a value for and show that it works.

*x* is an angle. Using a calculator, be sure your calculator is in degree mode, then type: