Grade 6 Unit 1 Vocabulary

Front

area

Back

the number of square units that cover a flat region with no gaps or overlaps.

Front

region

Back

the inside part of a shape (a flat part of the plane).

Front

decompose

Back

take a shape apart into smaller shapes.

Front

compose

Back

put shapes together to make a new shape.

Front

parallelogram

Back

a quadrilateral with two pairs of parallel sides.

Front

quadrilateral

Back

a polygon with 4 sides.

Front

base

Back

any side you choose to use for measuring height; it’s paired with a height.

Front

height

Back

the perpendicular distance from a base to the opposite side or vertex.

Front

vertex

Back

a point where two sides (or edges) meet.

Front

edge

Back

for 3D shapes, a line segment where two faces meet (for 2D shapes we usually say “side”).