Here are the categorizations for each fact about triangles:
- The three angles in a triangle add up to 180°: True
- The longest side of a triangle is called the hyppocampus: False (The longest side is called the hypotenuse, specifically in a right triangle.)
- The Pythagorean Theorem is a² + b² = c²: True
- The longest side is across from the longest angle: True
- The basic trigonometric functions are sine, cosine, and cotangen: False (The correct term is "cotangent," not "cotangen.")
So, the final answers are:
- True
- False
- True
- True
- False