Geometry V

Notes

Geometry Vocabulary •Angles 1. Acute Angle - An angle measuring more than 0 degrees but less than 90 degrees. 2. Right Angle - An angle measuring exactly 90 degrees. 3. Obtuse Angle - An angle measuring more than 90 degrees but less than 180 degrees. 4. Straight Angle - An angle measuring exactly 180 degrees. •Angle Relationships 5. Complementary Angles - Two adjacent angles that sum to 90 degrees. 6. Supplementary Angles - Two adjacent angles that sum to 180 degrees. 7. Vertical Angles - Two congruent angles on opposite sides of intersecting lines. •Lines and Transversals 8. Transversal - A line intersecting parallel lines. 9. Alternate Interior Angles - Two congruent angles on opposite sides of a transversal inside parallel lines. 10. Alternate Exterior Angles - Two congruent angles on opposite sides of a transversal outside parallel lines. •Triangles 11. Equilateral Triangle - A triangle with all sides equal. 12. Isosceles Triangle - A triangle with two equal sides. 13. Scalene Triangle - A triangle with no equal sides. 14. Acute Triangle - A triangle with three acute angles. 15. Right Triangle - A triangle with one right angle. 16. Obtu...