Geometry vocab

3. Two angles are complementary if the sum of their measures is 90.
8. A triangle with no sides and angles equal in length.
11. A triangle with all three sides equal in length, each angle of an equilateral triangle measures 60°
13. Consists of two lines that have a common endpoint called the vertex of the angle.
14. A triangle with two sides equal in length and two base angles equal.
15. Two lines that intersect at right angles; the symbol ⟂ means “is perpendicular to”
16. An angle whose measure is more than 90 and less than 180.

1. The angles which occupy the same relative position at each intersection where a straight line crosses two others. If the two lines are parallel, the corresponding angles are equal.
2. The point at which the rays of an angle or the sides of a polygon meet; the plural form of the word is “vertexes” or “vertices”
4. Two sides that share a common vertex.
5. An angle whose measure is less than 90 but greater than zero.
6. A 2-dimensional figure formed by three or more line segments (sides) that meet only at their endpoints (vertices) to make a closed path; sides may not cross one another.
7. Two lines in the same plane that do not intersect ( distance between the two lines is the same at any point).
9. The axis or imaginary line that passes through the center of the shape or object and divides it into identical halves.
10. Two angles are supplementary if the sum of their measures is 180.
12. A polygon in which all sides are the same length and all angles have the same measure