Geometry Game Review

How many sides does a hexagon have?

• 5

• 6

• 7

• 8

Answer explanation

A hexagon is defined as a polygon with six sides. Therefore, the correct answer is 6.

What do you call a polygon with 7 sides?

• Hexagon

• Heptagon

• Octagon

• Nonagon

Answer explanation

A polygon with 7 sides is called a heptagon. The other options are incorrect: a hexagon has 6 sides, an octagon has 8 sides, and a nonagon has 9 sides.

How many lines of symmetry does a regular octagon have?

• 6

• 7

• 8

• 9

Answer explanation

A regular octagon has 8 equal sides and angles, allowing for 8 lines of symmetry. Each line can be drawn through a vertex and the midpoint of the opposite side or through the midpoints of opposite sides.

A nonagon has how many sides?

• 8

• 9

• 10

• 11

Answer explanation

A nonagon is a polygon with 9 sides. Therefore, the correct answer is 9.

Which of these polygons has the most lines of symmetry?

• Hexagon

• Pentagon

• Octagon

• Decagon

Answer explanation

A decagon has 10 sides, allowing for 10 lines of symmetry. In comparison, a hexagon has 6, an octagon has 8, and a pentagon has 5. Therefore, the decagon has the most lines of symmetry among the given options.

How many sides does a decagon have?

• 8

• 9

• 10

• 12

Answer explanation

A decagon is defined as a polygon with 10 sides. Therefore, the correct answer is 10, not 12. The other options (8, 9, and 12) do not represent the number of sides in a decagon.

Which polygon has 6 lines of symmetry?

• Pentagon

• Hexagon

• Octagon

• Heptagon

Answer explanation

A hexagon has 6 lines of symmetry, as it can be divided into equal parts through its center by drawing lines through each vertex and the midpoints of opposite sides. Other polygons do not have this many lines of symmetry.

What type of polygon is a stop sign?

• Hexagon

• Octagon

• Nonagon

• Decagon

Answer explanation

A stop sign is an octagon, which has eight sides. This shape is specifically designed for stop signs to make them easily recognizable and distinguishable from other signs.

A regular polygon is one where:

• All sides and angles are different

• All sides and angles are the same

• Only the angles are the same

• Only the sides are the same

Answer explanation

A regular polygon is defined as having all sides and angles equal. Therefore, the correct choice is 'All sides and angles are the same', as this ensures uniformity in shape and symmetry.

Which of these polygons has 7 lines of symmetry?

• Hexagon

• Heptagon

• Octagon

• Decagon

Answer explanation

A heptagon, which has 7 sides, also has 7 lines of symmetry. Each line of symmetry passes through a vertex and the midpoint of the opposite side, making it the correct choice. Other polygons have fewer lines of symmetry.