11.1 Polygons

Marianna would like to create a mosaic using pieces that have only four angles. Which shapes could Marianna use?

• A and B

• B and C

• A and D

• B and D

Lino found a small green piece of glass with this shape. What is the name of the shape? Is it regular?

• hexagon; regular

• hexagon; not regular

• octagon; regular

• octagon; not regular

Tags

CCSS.4.G.A.2

Multi-Step

Lois began a mosaic using congruent regular triangles. She first placed a triangle as a center piece. She then placed three triangles so that one side of each triangle lined up with one side of the original triangle. What shape was formed by the first four pieces?

• regular hexagon

• quadrilateral

• regular triangle

• nonagon

Which of the following is a regular hexagon?

• 
• 
• 
• 

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

Name each polygon. Then tell whether it is a regular polygon or not a regular polygon.

• quadrilateral; regular polygon

• pentagon; not a regular polygon

• triangle; not a regular polygon

• quadrilateral; not a regular polygon

Name each polygon. Then tell whether it is a regular polygon or not a regular polygon.

• quadrilateral; regular polygon

• triangle; regular polygon

• triangle; not a regular polygon

• quadrilateral; not a regular polygon

Name each polygon. Then tell whether it is a regular polygon or not a regular polygon.

• pentagon; not a regular polygon

• triangle; regular polygon

• hexagon; not a regular polygon

• pentagon; regular polygon

Name each polygon. Then tell whether it is a regular polygon or not a regular polygon.

• pentagon; not a regular polygon

• triangle; regular polygon

• hexagon; not a regular polygon

• pentagon; regular polygon

Chantal draws a polygon with seven congruent sides and angles. Name Chantal’s shape. Is the shape a regular polygon?

• hexagon; regular polygon

• octagon; regular polygon

• heptagon; regular polygon

• heptagon; not a regular polygon

Name the shapes that make up the Texas state flag. Are any of the shapes regular polygons?

• 3 quadrilaterals; 1 decagon

• The quadrilaterals are regular polygons.

• The quadrilaterals are not regular polygons because all sides are not congruent.

• The decagon is not a regular polygon because the angles are not congruent.

• The decagon isa regular polygon.