Worksheet: Classifying Polygons

In this worksheet, we will practice sorting and classifying polygons into groups by considering properties like the number of sides and angles; whether the sides are parallel or perpendicular; and whether the angles are acute, right, or obtuse.


Which of these shapes never has parallel sides?

  • Arhombus
  • Bsquare
  • Ctriangle
  • Dtrapezoid
  • Erectangle


Which of these is not equal to the number of sides of a polygon?

  • Athe number of angles of the polygon
  • Bthe number of diagonals of the polygon
  • Cthe number of vertices of the polygon


What kind of polygon is this?

  • Asquare
  • Btrapezoid
  • Cparallelogram
  • Drhombus


Name the shape that matches this description.

  • It has 5 sides.
  • It has 5 angles.
  • It is closed.
  • Aa square
  • Ba triangle
  • Ca hexagon
  • Da pentagon


How many angles are there in a pentagon?


What is the name of a polygon that has 3 sides and 3 angles?

  • Aa quadrilateral
  • Ba triangle
  • Can octagon
  • Da pentagon
  • Ea hexagon


Pick the shape that Elizabeth is describing.

  • A
  • B
  • C
  • D


Fill in the blanks: A triangle is a polygon that has sides and angles.

  • A4, 4
  • B3, 3
  • C4, 3
  • D3, 4
  • E2, 3


Pick the shape that Daniel is describing.

  • A
  • B
  • C
  • D


Which polygon has 8 sides and 8 angles?

  • Aa triangle
  • Ba pentagon
  • Can octagon
  • Da hexagon
  • Ea quadrilateral


A polygon has 4 sides and 4 angles. What kind of polygon is it?

  • Atriangle
  • Bhexagon
  • Cquadrilateral
  • Doctagon
  • Epentagon


Consider the following figure.

How many sides does this shape have?

How many angles does it have?


Which polygon has 5 sides and 5 angles?

  • Aa pentagon
  • Ba triangle
  • Ca quadrilateral
  • Da hexagon
  • Ean octagon


What shape is this?

  • Aa triangle
  • Ba hexagon
  • Ca quadrilateral
  • Da pentagon
  • Ean octagon

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