PLEASE HELP ME?? Type the correct answer in the box. Spell all words correctly.

Richard was studying a computer simulation of the Earth’s rotational motion. He observed that Earth’s axis was inclined at an angle in relation to its plane of orbit around the Sun. How would Richard ideally define this inclination of the Earth’s axis?

Richard would define the inclination of the Earth’s axis in relation to its plane of orbit around the Sun as the planet’s