Elective - Geometry

3. It is the union of three or more coplanar segments.
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.
6. The _______ is greater than any of its parts.
7. 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.
8. A polygon is _______ if the lines containing the sides of the polygon do not contain points in its interior
9. A _______ has four congruent sides.
11. An angle inscribed in a semicircle is a _______ angle.

1. This is a polygon formed by three segments, joining three noncollinear points.
2. If a radius is perpendicular to a chord, then it _______ the chord.
3. A _______ has two pairs of parallel sides.
4. A triangle is either acute, right, obtuse, or equiangular depending on the _______ of its angles.
10. A ______ has four right angles and four congruent sides.