Elective - Geometry

2. A _______ has four congruent sides.
6. A _______ has two pairs of parallel sides.
8. If a radius is perpendicular to a chord, then it _______ the chord.
10. A ______ has four right angles and four congruent sides.
11. An angle inscribed in a semicircle is a _______ angle.
12. It is the union of three or more coplanar segments.
13. In any _______ triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the two sides.
15. A _______ has four right angles.
18. The _______ is greater than any of its parts.
19. A segment is a _______ of a triangle if its endpoints are a vertex and the midpoint of the opposite side.

1. This is a polygon formed by three segments, joining three noncollinear points.
3. The remote interior angles are angles which are not _______ to the given exterior angle of the triangle.
4. A triangle is either acute, right, obtuse, or equiangular depending on the _______ of its angles.
5. This is an altitude of a triangle if it is perpendicular from a vertex of the triangle to the line that contains the opposite side.
7. A _______ polygon is a convex polygon that is both equilateral and equiangular.
9. A _______ is either scalene, isosceles, or equilateral depending on the length of its sides.
14. A _______ has exactly one pair of parallel sides.
16. A polygon is _______ if and only if at least one of its sides is contained in a line, which also contains points in the interior of the polygon.
17. A polygon is _______ if the lines containing the sides of the polygon do not contain points in its interior