Understanding Geometric Shapes

What is a key characteristic of 2D shapes?

• They have length and width but no height.

• They have height, width, and depth.

• They are always circular.

• They have curved surfaces.

Which of the following is NOT a property of polygons?

• They have straight lines.

• They have curves.

• They have vertices.

• They are closed shapes.

What is a regular polygon?

• A polygon with equal sides and angles.

• A polygon with unequal sides and angles.

• A polygon with one angle greater than 180°.

• A polygon with lines that cross over.

What is a concave polygon?

• A polygon with all angles less than 180°.

• A polygon with one angle greater than 180°.

• A polygon with equal sides and angles.

• A polygon with lines that cross over.

How is a polygon with 14 sides commonly referred to?

• A tetradecagon

• A 14-gon

• A decagon

• A dodecagon

Which polygon has five sides?

• Hexagon

• Pentagon

• Heptagon

• Octagon

Which of the following is a curved 2D shape?

• Triangle

• Pentagon

• Quadrilateral

• Circle

What is a characteristic of 3D shapes?

• They have no volume.

• They have only length and width.

• They have height, width, and depth.

• They are always flat.

Which of the following is an example of a 3D shape?

• Circle

• Sphere

• Ellipse

• Crescent

What is a polyhedron?

• A 2D shape with straight lines.

• A 2D shape with curved lines.

• A 3D shape with curved surfaces.

• A 3D shape with flat polygonal faces.