October Vocab

Front

Perimeter

Back

Continuous line forming the boundary of a closed 2D figure.

Front

Area

Back

Number of unit squares covering a 2D closed figure.

Front

Volume

Back

Measure of space (capacity) within a 3D object.

Front

Surface Area

Back

Total area of a 3D object's surface.

Front

Trapezoid

Back

a quadrilateral with one pair of parallel sides

Front

Irregular Polygon

Back

A polygon with sides of different lengths and interior angles of different measures.

Front

Net

Back

A pattern that can be cut and folded to create a model of a solid (3D) shape.

Front

Rational Number

Back

any number that can be written as a fraction

Front

Repeating Decimal

Back

A decimal with a repeating pattern of digits after the decimal point that continues forever.

Front

Bar Notation

Back

A bar over the repeating digit(s).