Cover the answer and try to get to that same conclusion using the logic you just saw.
Remember, the base angles are twins. If you find one, you’ve found the other. Cover the answer and try to get to
It’s always 180°. If your math says 181°, a triangle somewhere is crying. Cover the answer and try to get to
Look for that "Z" shape (alternate interior angles). It's the secret key to almost every KIM diagram. The Bottom Line Cover the answer and try to get to