Across
- 2. a direction as an angle measured from a reference point, typically moves clockwise from North, used for navigation and spatial problems
- 5. Negative b plus/minus square root of b squared minus 4ac all divided by 2a
- 7. triangle with one 90-degree angle
- 9. with the same shape but different sizes, meaning their corresponding angles are equal, and their corresponding sides are proportional (in the same ratio)
- 10. which are always positive and acute, that represent the smallest angle between the terminal side of an angle and the x-axis, simplifying trigonometric calculations
- 12. rotation of a ray around the vertex to a new position, measured in degrees or radians
- 13. directed line segment that has a magnitude and a direction. Also has a given length, and an arrow indicating direction
- 14. longest side of a right-angled triangle, always located directly opposite the 90-degree angle
- 15. unit for measuring angles, defined as the angle at the center of a circle that subtends an arc whose length is equal to the circle's radius
- 17. angle greater than 0 degrees but less than 90 degrees
- 18. involving trigonometric functions that are used to simplify expressions and solve equations
Down
- 1. trigonometric functions at special angles using a circle on a coordinate plane
- 3. trick to quickly find exact sine, cosine, and tangent values for special angles (0°, 30°, 45°, 60°, 90°) using your hand
- 4. theorem attributed to Pythagoras that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides.
- 6. in standard position that lies exactly on the x-axis or y-axis
- 8. roots of numbers, indicating what number multiplied by itself (or itself 'n' times) yields the radicand (the number inside)
- 11. unit for measuring angles
- 16. process of rewriting an expression or equation as a product of simpler ones