Unit#1 Vocabulary 1.1

Part #1

1. Region - The space inside a shape.

2. Area - the number of square units that covers a two-dimensional region, without any gaps or overlaps.

3. Tiling - Covering a 2-dimensional region with copies of the same shape or shapes.There are no gaps or overlaps.

4. Compose - to “put together.” We use this word to describe putting more than one figure together to make a new shape.

5. Decompose - to “take apart.” We use this word to describe taking a figure apart to make more than one new shape.

6. Rearrange - Change the placement or arrangement

7. Parallelogram - A type of quadrilateral that has two pairs of parallel sides.

8. base (of a parallelogram or triangle) - any side of a parallelogram or triangle. Sometimes we use this word to refer to the length of this side.

9. height (of a parallelogram or triangle) - The shortest distance from the base of the shape to the opposite side (for a parallelogram) or opposite vertex (for a triangle).

10. Vertex - A point where two or more edges meet.

11. Quadrilateral - A type of polygon that has 4 sides.