Basic Properties of 2D Shapes

Front

Triangle

Back

3 sides, 3 angles

Front

Square

Back

4 equal sides, 4 right angles

Front

Rectangle

Back

Opposite sides equal, 4 right angles

Front

Circle

Back

No sides, constant radius

Front

Pentagon

Back

5 sides, 5 angles

Front

Hexagon

Back

6 sides, 6 angles

Front

Octagon

Back

8 sides, 8 angles

Front

Parallelogram

Back

Opposite sides parallel, equal

Front

Rhombus

Back

4 equal sides, opposite angles equal

Front

Trapezoid

Back

1 pair of parallel sides