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Sides and Vertices Worksheets for 2nd Grade

Count the sides and vertices (corners) of triangles, quadrilaterals, pentagons, and hexagons. 15 free printable worksheets, each with an answer key.

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Free Sides and Vertices Worksheets

Click a worksheet to open the PDF, or grab the matching answer key. Every sheet prints on one page.

Sides and Vertices: what children learn

A vertex is a corner where two sides meet, so a shape has as many vertices as sides. Knowing this helps kids sort and name shapes quickly.

Sides and Vertices: worked example

How many vertices does a hexagon have? 6

A hexagon has 6 sides and 6 corners, so it has 6 vertices.

Sides and Vertices: a common mistake to watch for

Kids sometimes count the sides but skip a corner, or count one corner twice.

Sides and Vertices: how to help at home or in class

Build shapes from straws or toothpicks, pressing a ball of clay at each corner. Count the clay balls, then count the straws, and notice the two numbers match. Take one straw away and ask what happened to the shape. When your child gives the number of corners from the number of sides without counting twice, try clue puzzles that ask for the shape name.

What is on these Sides and Vertices worksheets

This set has 15 different worksheets for 2nd grade, with 7 questions on each and a matching answer key for every sheet. The instruction printed on each worksheet is: “Write how many, or write the shape name.”

Example questions like the ones on these worksheets, with their answers:

  • How many sides does a triangle have?3
  • How many sides does a circle have?0
  • How many vertices does a hexagon have?6
  • How many sides does a square have?4
  • A quadrilateral has __ vertices.4
  • How many sides does a rectangle have?4
  • How many sides does a pentagon have?5

Every answer on every sheet is checked by a separate program before the worksheet is published. How we check answers

Related Geometry worksheets for 2nd grade

Identify 2D Shapes
Name triangles, quadrilaterals, squares, rectangles, pentagons, hexagons, and circles.
Shapes and Their Attributes
Use clues about sides and vertices to find the right shape.
Rows and Columns of Squares
Count the equal squares in a rectangle made of rows and columns.
Name Equal Shares (Halves, Thirds, Fourths)
Look at a shape split into equal shares and name them halves, thirds, or fourths.
Divide Shapes into Equal Shares
Draw lines to split a shape into 2, 3, or 4 equal shares.
Color Equal Shares
Color one half, one third, or one fourth of a shape that is split into equal shares.
All Geometry worksheets
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