Classify 2D Polygons

Look at picture. Which figures have all congruent sides?

• A and B

• B and C

• A and C

• B and D

I have eight sides, angles, and vertices. What am I?

• quadrilateral

• pentagon

• octagon

• heptagon

How many sides does a heptagon have?

• six

• eight

• four

• seven

• A

• B

• C

• D

• A

• B

• C

• D

What are these?

• Square

• Quadrilateral

• Polygon

• Hexagon

Who am I? I have 2 LONG sides and 2 short sides. I also have 4 vertices.

• Triangle

• Square

• Rectangle

• Circle

• They are all hexagons

• They are all pentagons

• They are are all quadrilaterals

• They are all polygons

• 2 rectangles, 3 pentagons, and 1 hexagon

• 3 quadrilaterals, 2 pentagons, and 1 hexagon

• 1 hexagon, 2 pentagons, 1 triangle, and 2 rectangles

• 2 quadrilaterals and 4 pentagons

Eric sorted shapes into categories as show. Which answer choice best describes errors Eric made in sorting these shapes?

• The circle and the pentagon don't belong with the polygons and the trapezoid doesn't belong with the quadrilaterals.

• The circle doesn't belong with the polygons and the pentagon does't belong with the trapezoids.

• The parallelogram doesn't belong with the trapezoids.

• The triangle and the circle don't belong with the polygons and the pentagon doesn't belong with the trapezoids.