Geometry

3. A closed figure with three or more straight sides. We name a polygon by the number of its sides. For example, a five-sided polygon is a pentagon.
4. A figure with four sides.
7. One side of a solid.
8. A line that joins opposite corners or vertices of a figure.
10. A point where two sides of a figure meet.
11. An angle measuring between 90 and 180 degrees.

1. Exactly the same size and shape.
2. Two lines that are always the same distance apart.
5. Next to.
6. An angle that measures less than 90 degrees.
8. A unit of measurement to measure the size of an angle.
9. Two straight lines meet to form an angle. Each side of an angle is called an arm. We show an angle by drawing an arc.