Vertical angles must: Check all that apply. \( \square \) A. have the same vertex. \( \square \) B. be adjacent. \( \square \) C. be obtuse. \( \square \) D. be congruent.

Did you know that vertical angles are formed when two lines intersect, creating pairs of angles that sit directly opposite each other? This means they share the same vertex but are not adjacent to one another. That's right! They are like best buddies in the angle world, always a perfect match! In real-world scenarios, understanding vertical angles can be super handy! For instance, when setting up a television mount, ensuring the angles are accurate allows for optimal viewing. So, if you've got a protractor handy, you can double-check those vertical angles and ensure everything is picture-perfect!