# Worksheet: Naming Polygons

In this worksheet, we will practice counting the edges and vertices of polygons in order to name them as triangles, quadrilaterals, pentagons, hexagons, or octagons.

Q1:

What is the name of a 5-sided polygon?

• Bhexagon
• Ctriangle
• Dpentagon

Q2:

What is the name of a 6-sided polygon?

• Apentagon
• Ctriangle
• Dhexagon

Q3:

How many vertices are there in a triangle?

Q4:

How many vertices are there in a hexagon?

Q5:

Which polygon has three sides? • A(a)
• B(b)
• C(d)
• D(c)

Q6:

What is the name of this shape? • Aoctagon
• Bpentagon
• Dtriangle
• Ehexagon

Q7:

Identify the following two-dimensional figure. • Bpentagon
• Coctagon
• Dhexagon
• Etriangle

Q8:

Anthony made a quadrilateral using 4 toothpicks. He now wants to change the quadrilateral into an octagon. How many more toothpicks does he need?

Q9:

Daniel made a quadrilateral using 4 toothpicks. He now wants to change the quadrilateral into a pentagon. How many more toothpicks does he need?

Q10:

Benjamin made a quadrilateral using 4 toothpicks. He now wants to change the quadrilateral into a hexagon. How many more toothpicks does he need?

Q11:

A triangle is a polygon that has sides and angles.

• Atwo, three
• Bthree, four
• Cthree, three
• Dfour, four

Q12:

How many vertices are there in a pentagon?

Q13:

What is the name of a 4-sided polygon?

• Apentagon
• Bhexagon
• Ctriangle

Q14:

What is the name for a 3-sided polygon?

• Bpentagon
• Chexagon
• Dtriangle

Q15:

Matthew made a triangle using 3 toothpicks. He now wants to change the triangle into an octagon. How many more toothpicks does he need?

Q16:

True or false? A hexagon has fewer sides than an octagon.

• Atrue
• Bfalse

Q17:

Daniel’s brother draws a 3-side figure in the shape of a polygon to show what the roof of a tree house will look like. What kind of polygon is it?

• Aa rhombus
• Ba cube
• Ca rectangle
• Da triangle
• Ea square

Q18:

How many more sticks does Matthew need to change this hexagon into an octagon? Q19:

Peter made a pentagon using 5 toothpicks. He now wants to change the pentagon into an octagon. How many more toothpicks does he need?

Q20:

Which two vertices can be joined together to form two polygons with the same number of sides? • A
• B
• C
• D

Q21:

How many sides does the following polygon have? Q22:

Which two vertices can be joined together for form two polygons; one with three sides and the other with seven sides? • A
• B
• C
• D

Q23:

Which of these polygons has six sides? • Athe green one
• Bthe red one
• Cthe yellow one
• Dthe blue one

Q24:

How many 6-sided polygons are on the clown? Q25:

How many 10-sided polygons are on the clown? 