Numbers Greek

2. , six-footed.
3. , a series of four connected works (such as operas or novels).
7. , a molecule that has two atoms of oxygen and one atom of another element (such as carbon).
8. , a flat shape that has five sides and five corners.
9. , a way of talking or singing without raising or lowering the sound of your voice.
13. , a flat shape that has seven sides and seven angles.
15. , used to describe something that is boring because it is always the same.
17. , a situation in which you have to make a difficult choice.
18. , a group of three singers or musicians who perform together.

1. , a polyhedron that has four faces.
4. , the process of deciding which patients should be treated first based on how sick or seriously injured they are.
5. , a branch of mathematics that deals with relationships between the sides and angles of triangles.
6. , a plane polygon of 10 angles and 10 sides.
10. , a group of nine.
11. , a diatonic series of six tones having a semitone between the third and fourth tones.
12. , a long speech given by a character in a story, movie, play, etc., or by a performer (such as a comedian).
14. , a sports contest for men that consists of 10 different events.
16. , a flat shape that has eight sides and eight angles.